Sustainable Development of Food Processing Enterprises in China

: Sustainable development is an eternal topic in the development of human society. The paper seeks to contribute to the adoption of sustainable development practices in the food processing enterprises of China by fostering the capacities of the enterprises. Moreover, the paper aims to contribute to the promotion of sustainable consumption by helping and encouraging consumers in making informed choices of sustainable and eco-efﬁcient produced foodstuffs. We combined with 1015 survey data in 28 areas of China by using AHP model analysis of the sustainable development of food processing enterprises. The results show that, the overall level of sustainable development ability of food processing enterprises in China is not high; paying attention to economic is signiﬁcantly more important than paying attention to social and environmental aspects. Chinese food processing entities have an acceptable basis for the implementation of sustainable development. But there are still some problems. Finally, some suggestions are put forward to promote the sustainable development of Chinese food processing enterprises. detail of the entire production process from production equipment and raw materials procurement to waste disposal. Update all environmental laws, policies and regulations affecting enterprises and ensure compliance. Organize publicity activities to make all employees aware of the importance of protecting the environment. Report the status of enterprise environmental protection regularly. Set up a staff suggestion box to provide suggestions on how to improve the environmental sustainability of the enterprise. Encourage suppliers to provide green raw materials and reward them. Test and monitor the water-saving and energy-saving equipment regularly. Adopt at least one water-saving and energy-saving technology every two years to systematically reduce water and energy consumption.


Introduction
Sustainable development is a kind of development with equal opportunities and benefits. Although different countries have different models of sustainable development, the principles of equity and sustainability are common. Human economic and social development cannot exceed the carrying capacity of resources and the environment. Sustainable development is a development theory and strategy based on the protection of natural resources and environment, on the condition of stimulating economic development, and on the goal of improving the quality of human life. It is a new concept of development, morality and civilization.
Food is one of the industries where sustainability issues are intrinsically embedded because of the amount and variety of natural resources usage, human requirements for basic nutrition, and communities that depend on food production for survival. However, improving sustainability in the food industry requires engagement of actors worldwide, in order to cope with the challenges of consumer expectations, limited resources, international policies and regulations [1].
"Food is the paramount necessity of people", namely, the food industry is the pillar of the national economy. Food industry represents nowadays a crucial motor for the development of the local economy and society, and as industrial process; it reports serious impacts that threaten its sustainability: (1) food sector entails important environmental impacts; (2) the effect of globalization and the changes in consumers' preferences is contributing to the demise of the traditional production systems and small companies; (3) ethical, health and safe working conditions are not always ensured; (4) the quality of products in the food sector creates a great concern in consumers. In the food industry, the implementation of sustainability practices has spread and studies have analyzed their impact on performance i.e., quality, efficiency, flexibility and responsiveness [2]. Sustainability performance represents the attainment of a sustainability-attained goal [3]. The sustainability triangle [4] or the three sustainability pillars [5], namely economic, social and environmental, are in constant interaction in the food industry. But enterprises tend to focus on economic sustainable development, rather than on environmental and social sustainable development. With the development of time, companies and researchers have recently pay attention to environmental and social indicators [6][7][8][9][10][11]. Sustainability is often presented as a goal in businesses, nonprofits and governments; however, measuring the degree to which an organization is being sustainable can be difficult to achieve because beyond economic performance measurement, environmental and social are difficult to quantify [12,13].

Definition of Sustainable Development
The roots of the sustainable development concept can be found in the emerging environmental consciousness of the 1960s and in the identification of the link between economic development and environmental degradation and pollution. Sustainable development (SD) was used for the first time in the 1980 IUCN report, World Conservation Strategy: Living resources for sustainable development. The perhaps most commonly quoted definition within today's extensive SD literature is the popularization and definition of the concept made by the World Commission on Environment and Development published in 1987 in the report Our Common Future also called the Brundtland Report: Sustainable development is development that meets the needs of current generations without compromising the ability of future generations to meet their needs. (WCED, 1987:43) In 1991, the International Union for Conservation of Nature (INCN), the United Nations Environment Program (UN-EP) and the World Wildlife Fund International (WWF) jointly issued "Caring for the Earth: A Strategy for Sustainable Living", SD is defined as "improving the quality of human life while living within the carrying capacity of supporting eco-systems", and put forward the nine basic principles of human Sustainable existence.
In November 1991, the International Federation of Ecology (INTECOL) and the International Union of Biological Science (IUBS) jointly held a symposium on sustainable development. SD is defined as: "protect and strengthen the environmental system of production and the ability to update", the meaning of SD is not beyond the environment and system update ability's development.
Edward B. Barbier [14] defined SD as "In the premise of maintaining the quality and the services provided of the natural resources, Increase the net benefit of economic development to the maximum extent".

Definition on Enterprise Sustainability
As the actor and subject of microeconomic, enterprises are not only the direct creator of wealth, but also principal of resource consumption and environmental protection. The ultimate goal of sustainable development of enterprises is to achieve sustainable development of human society.
As a business approach, Corporate Sustainability aims to create long-term consumer and employee value via two means: For profit: balance with short-term profit and long-term profit, market share; For not profit: As part of natural system, enterprise need to coordinate the resources and capabilities of society by creating a "green" strategy aimed towards the natural environment, taking into consideration every dimension of how a business operates in the social, cultural, and economic environment.
American scholar Brown [15] indicated that "when today's world march towards sustainable development goals with firm steps, whether large or middle and small-sized enterprises, all have their duty and task. Whether can establishment the sustainable development economy, but also influence enterprise's fate". Marketing management master Philip Kotler [16] points out that "the sustainable development company is the company who can constantly promote the benign cycle when facing the changing market environment". GUO YuMing [17] point out that "the sustainable development enterprise is the enterprise who can dominate resources in the larger scale, seek a bigger market share, continuously overcome and transcend self, so as to obtain a good development in the foreseeable future".

How to Evaluate Enterprise Sustainability
There are several theories available to describe corporate/enterprise sustainability: The concept of CSR has consistently evolved during the past several decades [18,19]. It has been defined through a range of economic, legal, ethical, and voluntary activities. The social responsibility companies need to assume is not only profit-making, but also actively contribute to social and environmental solutions [20,21].
It is a form of corporate self-regulation integrated into a business model. CSR is a process with the aim to embrace responsibility for the company's actions and encourage a positive impact through its activities on the environment, consumers, employees, communities, stakeholders and all other members of the public sphere who may also be considered stakeholders.
CSR is not only a commercial gesture, but also a requirement when the market economy develops in certain internal stages. At some extent, CSR can make up make up for government intervention and market regulation defects. To build a harmonious society and achieve sustainable economic and social development, Chinese enterprises must fulfil their social responsibilities seriously.

D4S (Design for Sustainability):
'Sustainable products' is the term used to comprehend all kinds of products that have or aim at an improved environmental and social quality, which can be related back to the already mentioned implementation of environmental and social standards. The ultimate aim is to satisfy customers and gain a competitive advantage in the market. D4S (design for sustainability) (Figure 1), published by Delft University of Technology and UNEP, thinks that the role of sustainability in product innovation includes three key elements: planet, people and profit. These 3 key elements are also referred to as environmental, social and economic.
Sustainability 2018, 10, x FOR PEER REVIEW 3 of 20 market share, continuously overcome and transcend self, so as to obtain a good development in the foreseeable future".

How to Evaluate Enterprise Sustainability
There are several theories available to describe corporate/enterprise sustainability: The concept of CSR has consistently evolved during the past several decades [18,19]. It has been defined through a range of economic, legal, ethical, and voluntary activities. The social responsibility companies need to assume is not only profit-making, but also actively contribute to social and environmental solutions [20,21].
It is a form of corporate self-regulation integrated into a business model. CSR is a process with the aim to embrace responsibility for the company's actions and encourage a positive impact through its activities on the environment, consumers, employees, communities, stakeholders and all other members of the public sphere who may also be considered stakeholders.
CSR is not only a commercial gesture, but also a requirement when the market economy develops in certain internal stages. At some extent, CSR can make up make up for government intervention and market regulation defects. To build a harmonious society and achieve sustainable economic and social development, Chinese enterprises must fulfil their social responsibilities seriously.

D4S (Design for Sustainability):
'Sustainable products' is the term used to comprehend all kinds of products that have or aim at an improved environmental and social quality, which can be related back to the already mentioned implementation of environmental and social standards. The ultimate aim is to satisfy customers and gain a competitive advantage in the market. D4S (design for sustainability) (Figure 1), published by Delft University of Technology and UNEP, thinks that the role of sustainability in product innovation includes three key elements: planet, people and profit. These 3 key elements are also referred to as environmental, social and economic.   Table 1 shows the summary of European environmental policy frameworks and legislations. Compared with other development models, sustainable development does not only emphasize economic growth, but it stresses the importance of a balance between economic growth and environmental protection. Thus, Sustainable development involves the natural, environmental, social, economic, technological, political and other aspects. Many scientists have even made more or less successful attempts to derive a common understanding of SD. Regardless, most of them agreed with 3 dimensions and classically explained as the balancing between environmental, economic and social aspects of development [22]. These three aspects are frequently defined as the three pillars of SD: Economic dimension; Environmental dimension; Social dimension.

Research Population: Food Processing Enterprises
The food supply chain is mainly composed of farm, manufacturing plant, distribution center, supermarket or retailer, and consumer. Figure 2 shows the structure of a simplified food supply chain.
successful attempts to derive a common understanding of SD. Regardless, most of them agreed with 3 dimensions and classically explained as the balancing between environmental, economic and social aspects of development [22]. These three aspects are frequently defined as the three pillars of SD: Economic dimension; Environmental dimension; Social dimension.

Research Population: Food Processing Enterprises
The food supply chain is mainly composed of farm, manufacturing plant, distribution center, supermarket or retailer, and consumer. Figure 2 shows the structure of a simplified food supply chain.  There is a growing demand for meat aided by the government's prioritization for abundant and cheap food. Increasingly intransigent environmental, health and food safety problems associated with the food industry are beginning to make some Chinese experts, government authorities and consumers question the current approach to food production and consumption. These companies are asked to consider the environmental and social problems present in their entire supply chain.

Technical Criteria for Indicator Design and Selection
The literature review shows that there are so many technical criteria are common and they stress that an indicator should be: Specific: Indicators must relate to the desired outcome, i.e. fit the purpose for measuring. Measurable: Indicators should preferably be open to measurement in a quantitative manner.
Pedagogical: Indicators should be practical and designed for those who are going to use them. Sensitive: Indicators must readily change as circumstances change. Reliable: The information that an indicator is providing must be reliable. Data upon which the indicator is based must therefore be collected using a systematic method. Cost-effective: The cost of accumulating necessary data should not exceed the benefits of using the indicator.
Relevant and Usable: Indicators should show what is needed to know. This includes the need for a clear definition of the objective that the indicators are meant to achieve.

Materials and Methods
In this study, a total of 1060 questionnaires were collected, there were 1015 valid questionnaires, the effective rate is 95.75%, and the questionnaire involves 28 areas. By the investigation of the enterprise not only includes the Shuanghui and Yurun such enterprise group, but also includes small family enterprises. Table 2 shows the area distribution of research enterprise for statistics. After data collection, they need to be transformed and integrated into one value. Firstly, we will utilize food supply chain experts' opinions about which factors contribute the most to sustainability. The Analytic Hierarchy Process (AHP) is supposed to translate these opinions into importance ratings.
Then, the indicators are weighted by these importance ratings to generate an overall index of sustainability.
Last, stakeholders can use the index to evaluate its processes, and supply chain members can use this approach to guide improvement efforts.
This section should include a detailed description of the last version of the Sustainability Conformity Model, including the following information:

Detailed Description of the Indicators of the First, Second and Third Level
The model consists of 3 dimensions as the first level indicators: economic, social and environmental. Among them, economic index aims to evaluate the growth of enterprises; the social aspect mainly inspects how the enterprise comply with regulations; what employees composition and the safety production; environmental aspect mainly evaluate the enterprise organization management, production preparation, water management, energy management, waste management and emergency management, etc.

Growth
Growth consists of market share, technology research & development and customer service: the market share means how many percent the key products of the enterprise take in the main sales market; technology R & D refers how many percent the staffs who are engaged in technology research and development are accounted for the number of all staffs; customer service reflects the percent the personnel the staffs who are engaged in the customer service are accounted for the number of all staffs.

Security
Security consists of Product renewal rate, Receivables Turnover Ratio, Product sales rate. Product renewal rate means the speed of product renewal; Receivables Turnover Ratio means Enterprise financing ability and capital security; Product sales rate means the ability of products to meet social needs.

Legal Compliance
Legal Compliance is composed of product traceability capacity, contract compliance rate: the product traceability capacity refers to rate the enterprise products can be traceable; contract compliance rate refers to the rate the contracts are fulfilled without any delay or dissatisfaction.

Staff and Production Safety
Staff and Production Safety means how many percent the trained staffs accounts for the number of all staffs.

Employee Benefits
Employee Benefits means Salary level of staff.

Organizational Management
Organizational Management is composed of environmental and sustainable development report, the environmental protection departments, the enterprises' rules and regulations, Environmental accident emergency plan formulation. Among them, the environmental and sustainable development report examines whether the enterprise issues the report on the environmental and sustainable development; environmental protection departments aims to investigate whether the enterprise set up a special department or section to manage environmental protection; the rules and regulations of the enterprise try to judge whether the relevant chapters on environmental protection; Environmental accident emergency plan formulation evaluates whether the enterprise set up Environmental accident emergency plan formulation.

Production Preparation
Production Preparation is composed of equipment procurement, the procurement of raw materials. Among of them, equipment purchase aims to evaluate if the enterprise considers environmental issues during they purchase production equipment; raw materials procurement refers to whether the enterprise considers the environmental protection requirements for suppliers in the procurement of raw materials production.

Energy and Water Consumption Management
Energy and Water Consumption Management consists of energy-saving measures and energy-saving technology, water saving measures and technology. Waste Management consists of waste water treatment, waste gas treatment, waste disposal and recycling, wherein the wastewater treatment refers to what kind of technology the enterprise adopt to treat waste water; waste gas treatment refers to which strategies and/or methods the enterprise adopts to reduce gas emissions; waste treatment refers to what kind of measures the enterprise adopts to reduce waste; waste recycling refers to what measures enterprise adopts to treat waste. Tables 3-5 show the description of sustainability indicators. This indicator provides an insight on the market occupancy rate of products produced by the enterprise, and the ability enterprises control the market. The expansion of the market share can make enterprises obtain some kind of monopoly, further not only bring monopoly profits but also maintain a competitive advantage.      The generation of wastes and in particular of hazardous wastes creates disposal problems that can cause social problems (health risks, noxious gas), environmental pollution (leaching from inappropriate disposal, gaseous emissions) and economic damage (cost of disposal and rehabilitation). Therefore, waste generation should be reduced to the minimum in value chains.

Description of the Indicators
Unit rate This indicator measures all practices and activities that have been implemented to effectively reduce the quantities of, and hazards derived from, waste generated by an enterprise' operations.

Theoretical Basis: The Analytic Hierarchy Process (AHP)
In this study, AHP [27] was employed to evaluate sustainability factors of Food Processing Enterprises in China. AHP was used because it can designate unquantifiable targets, and it is easier for users to develop decision support systems on it. AHP is a widely used analytical tool for solving multi-criteria decision-making (MCDM) problems [28]. It eliminates bias in decision-making by converting MCDM problems and subjective evaluation into a multilevel hierarchical framework [29].
The hierarchical structure of AHP consists of three levels: (1) the highest level shows the decision purpose, (2) the middle level represents decision considerations, and (3) [32]. The AHP procedure in this paper comprises the following steps: Step 1: Establish a Hierarchy Model. Combination with previous studies, we established the hierarchical structure model of food processing enterprises in China is shown in Table 6. Step 2: Construct Judgment Matrix. Table 7 shows the nine importance levels and their assignments given by Saaty. Table 7. Importance scale meaning table.

1
The two elements have the equal importance 3 The former element is slightly more important than the latter element 5 The former element is essentially more important than the latter element 7 The former element is intensity more important than the latter element 9 The former element is Extremely more important than the latter element 2,4,6,8 The middle value of the adjacent judgment We chose 5 experts in each aspect of economy, society and environment, compared and sort to the evaluation indexes which we selected can reflect the sustainability of the enterprise, the score of enterprise sustainability as shown in Table 8. The selected experts are representative, authoritative, serious and responsible. The number of experts is related to the number of evaluation indicators. The experts in the economic field are from food processing enterprises, the experts in the social field are from universities and research institutions, and the experts in the environmental field are from the environmental protection departments of the government. Calculation the product matrix of each row element M i Calculation 3 times square W i , Calculation the maximum Eigen value of the judgment matrix λ max , The result λ max = 3.0158 Because the calculation processes of other judgment matrices are the same as the sustainability, it is not listed here.
The consistency index is calculated by CI. The smaller the CI, the greater the consistency. Using the eigenvector corresponding to the maximum eigenvalue as the weight vector of the influence degree of the compared factor on a factor in the upper layer, the greater the inconsistency is, the greater the judgment error will be. It is therefore possible to measure the degree of inconsistency of A by the size of λ − n. Consistency index is defined as: CI = λ−n n−1 . When CI = 0, there is complete consistency; CI is close to 0, with satisfactory consistency; the greater the CI, the greater the inconsistency.
To measure the size of CI, the random consistency indicator RI is introduced: RI = CI 1 +CI 2 +···+CI n n . The corresponding relation is shown in Table 9. Considering that the deviation of consistency may be caused by random reasons, when testing whether the judgment matrix has satisfactory consistency, it is necessary to compare CI and random consistency index RI to obtain the test coefficient CR = CI RI . Generally, if CR < 0.1, the judgment matrix is considered to pass the consistency test; otherwise, there is no satisfactory consistency. After calculation, all the consistency check index is shown in Table 10. The consistency index of each system judgment matrix is less than 0.1. So it is acceptable to judge the consistency of the matrix. Step 4: Total Hierarchical Ordering.
Calculating the weight of the relative importance of all factors at a certain level to the highest level is called total hierarchical ordering. This process is carried out from the highest level to the lowest level. After calculation, the weight distributions are shown in Table 11. The explanations of the different weights give to each indicator are the next ones: Sustainable Development Index A = A 1 + A 2 + A 3 = ∑Weight * Score The Sustainable Development Index is the sum of Economic (A), Social (B) and Environment (C).

Results
After an individual evaluation of each company, a set of recommendations for each company was developed in order to improve its behavior towards the sustainability.

Evaluation Framework
The questionnaire is divided into three blocks with regard to the sustainability: Economic Sustainability, Social Sustainability, and Environmental Sustainability. These three Blocks are called first level indexes. Likewise, each Block is divided into different sub-blocks, which are called second level indexes and which directly contribute to the economic, social or environmental sustainability of the company. Finally, each second level index contains third level indexes or sustainability indicators which permit to assess in a very specific way the sustainability behavior of the company. After answering all the questions in, we will inform the results which show the situation of their companies with regard to the economic, social and environmental sustainability, and with respect to sustainable development in general. The indexes were organized in four levels: Level 0: Sustainable Development Index, which shows the behavior of the company towards sustainable development in general. Depending on the score obtained, we will get the assessment of this result (Best, Good, Moderate, Limited or Unacceptable). The score for this global index is in Table 12. Level 1: First level indexes, which show the behavior of the company towards the economic, social and environmental sustainability. The scores for this first level index are in Table 13. Level 2: Second level indexes, which contribute to the economic, social and environmental sustainability of the company. The scores for this second level index are in Table 14. Level 3: Third level indexes, which permit to assess in a very specific way the behavior of the company with respect to those aspects that directly affect the sustainability of the company, such as energy and water saving measures adopted organization of environmental emergency drills, etc. The scores for this second level index are in Table 15.

General Overview of the Results
The overall level of sustainable development ability of food processing enterprises in China is not high; pay attention to economic is significantly higher than to social and environmental aspects. In researched enterprise, only 8% scored more than 0.8 points, 13% score between 0.6 to 0.8 points, 45% score between 0.4 to 0.6 points, 32% score between 0.2 to 0.4, 2% score below 0.2. The sustainable development ability of Economic under ignore the weight score significantly higher than social and environmental aspects, many enterprises score almost close to zero in the aspect of social and environmental.
R & D investment is insufficient, the proportion of scientific research personnel is low, the yield rate of new product is difficult to guarantee. R/r ratio in researched enterprise, 77% of the company is less than 1%, 18% of the company is between 1% and 4%, 4% of the company is between 4% and 7%, less than 1% of the company is between 7% and 10%, there are only three companies reached 10%, product update cycle is long and slow, new product yields low.
Labor contract signing rate is not high, staff lack of production training, product traceability ratio is low, production and product safety is difficult to be guaranteed. In researched enterprise, only 18% has signed labor contracts with all employees, most companies hire employees based on market changes, elasticity of demand is very big, did not sign labor contract with employees; Only 14% of the companies regularly train all employees on skills and safety, 72% of the enterprises production train only for new employees on skills and safety, 14% of the companies did not train employees; 83% of the enterprise's products cannot be traced, 11% of the enterprises product traceability rate below 40%, 5% of the enterprises product traceability rate is between 40% and 80%, less than 1% of the enterprise product traceability rate more than 80%.
The environmental management is chaotic, the emphasizes to environmental protection in production preparation stage is not enough, the energy-saving and water-saving lag in technology and lack of measures, the waste is wanton emissions, the recycling utilization rate is extremely low, the environmental emergency management vacuum. In researched enterprise, 24% had set a special environmental management department, 11% had release the EIA report, 39% had formulate environmental regulations, 57% did not put energy consumption as an important indicator when purchasing production equipment, 67% did not put ecological standards as an important indicator when purchasing raw materials, 93% did not use energy-saving and water-saving technologies, 99% did not deal with waste gas, 70% did not deal with waste water, 60% did not deal with solid waste, 11% recycled waste. Almost 100% have not formulated an emergency plan for environmental accidents.

Discussion
According to the data obtained from the questionnaires, it can be said that the Chinese food processing entities have an acceptable basis for the implementation of sustainable development. But there are still some problems, the following suggestions are made.
First of all, focusing on R & D investment, and new product upgrading, the market gradually radiates development can make enterprise possess growth. Set up R & D department to collect user needs and translate them into new products, and implement better and more sustainable production and processing technology. Sell more products to existing users and seek potential users through effective means. Develop online sales model. Secondly, the reasonable capital structure and make production plan according to the market conditions can make enterprise possess safety. Third, abide by relevant laws and regulations, sign labor contracts with employees, provide competitive compensation and necessary training on safety production and production skills, product can be traceability. Implement the training plan for all employees of the enterprise, improve the ability building of new employees, and set up the ability building plan to train them with necessary production skills. Fourth, pay attention to environmental protection work, set up the special environmental protection department and administrative staff, release the EIA report, set out strictly environmental regulations and environmental accident emergency plan, did not pass an energy consumption detail of the entire production process from production equipment and raw materials procurement to waste disposal. Update all environmental laws, policies and regulations affecting enterprises and ensure compliance. Organize publicity activities to make all employees aware of the importance of protecting the environment. Report the status of enterprise environmental protection regularly. Set up a staff suggestion box to provide suggestions on how to improve the environmental sustainability of the enterprise. Encourage suppliers to provide green raw materials and reward them. Test and monitor the water-saving and energy-saving equipment regularly. Adopt at least one water-saving and energy-saving technology every two years to systematically reduce water and energy consumption.