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108 Results Found

  • Article
  • Open Access
26 Citations
4,097 Views
44 Pages

The Pine Cone Optimization Algorithm (PCOA)

  • Mahdi Valikhan Anaraki and
  • Saeed Farzin

The present study introduces a novel nature-inspired optimizer called the Pine Cone Optimization algorithm (PCOA) for solving science and engineering problems. PCOA is designed based on the different mechanisms of pine tree reproduction, including po...

  • Article
  • Open Access
166 Views
19 Pages

Pine Resin as a Natural Polymer Binder in Pine Cone-Reinforced Lightweight Concrete

  • Celal Kistak,
  • Araz Muhammed Hassan,
  • Ayse Bicer and
  • Nevin Celik

29 January 2026

The aim of this study is to investigate the potential applications of pine cones as plant-based waste material in the construction industry. In order to achieve this target, the pine cone particles (PCP) are mixed with cement to create new lightweigh...

  • Article
  • Open Access
1 Citations
2,901 Views
17 Pages

25 April 2023

Historically abundant longleaf pine (Pinus palustris Mill.) trees were once a leading source of profit and ecosystem services across the southeastern United States. The widespread decline in longleaf numbers following European colonization has prompt...

  • Article
  • Open Access
25 Citations
4,655 Views
18 Pages

8 August 2020

The real-time detection of pine cones in Korean pine forests is not only the data basis for the mechanized picking of pine cones, but also one of the important methods for evaluating the yield of Korean pine forests. In recent years, there has been a...

  • Feature Paper
  • Article
  • Open Access
13 Citations
6,017 Views
17 Pages

Fast and Large-Scale Anodizing Synthesis of Pine-Cone TiO2 for Solar-Driven Photocatalysis

  • Yan Liu,
  • Yanzong Zhang,
  • Lilin Wang,
  • Gang Yang,
  • Fei Shen,
  • Shihuai Deng,
  • Xiaohong Zhang,
  • Yan He,
  • Yaodong Hu and
  • Xiaobo Chen

1 August 2017

Anodization has been widely used to synthesize nanostructured TiO2 films with promising photocatalytic performance for solar hydrogen production and pollution removal. However, it usually takes a few hours to obtain the right nanostructures even on a...

  • Article
  • Open Access
23 Citations
7,967 Views
14 Pages

Potent Anti-HIV Activities and Mechanisms of Action of a Pine Cone Extract from Pinus yunnanensis

  • Xuan Zhang,
  • Liu-Meng Yang,
  • Guang-Ming Liu,
  • Ya-Juan Liu,
  • Chang-Bo Zheng,
  • Yong-Jun Lv,
  • Hao-Zhi Li and
  • Yong-Tang Zheng

6 June 2012

The anti-HIV activities of a pine cone extract (YNS-PY-F) from Pinus yunnanensis have been evaluated, and its mechanisms of action were also explored. The pine cone extract, YNS-PY-F, potently inhibited HIV-1IIIB, HIV-1RF, HIV-1A17, HIV-1AO18 and HIV...

  • Article
  • Open Access
45 Citations
3,267 Views
16 Pages

Assessment of Dimensional Stability, Biodegradability, and Fracture Energy of Bio-Composites Reinforced with Novel Pine Cone

  • Kanishka Jha,
  • Yogesh K. Tyagi,
  • Rajeev Kumar,
  • Shubham Sharma,
  • Muhammad Roslim Muhammad Huzaifah,
  • Changhe Li,
  • Rushdan Ahmad Ilyas,
  • Shashi Prakash Dwivedi,
  • Ambuj Saxena and
  • Alokesh Pramanik

24 September 2021

In this investigation, biodegradable composites were fabricated with polycaprolactone (PCL) matrix reinforced with pine cone powder (15%, 30%, and 45% by weight) and compatibilized with graphite powder (0%, 5%, 10%, and 15% by weight) in polycaprolac...

  • Article
  • Open Access
1,127 Views
15 Pages

1 August 2025

Deforestation driven by plantations, such as Pinus patula Schiede ex Schltdl. et Cham., is a major cause of biodiversity and functional loss in tropical ecosystems. We assessed the diversity and composition of lichens and bryophytes in four size cate...

  • Article
  • Open Access
2 Citations
2,532 Views
23 Pages

15 June 2025

High turbidity in raw water poses a major challenge to drinking water quality and requires effective, sustainable treatment solutions. This work investigates the reduction in turbidity in raw water and the enhancement of overall drinking water qualit...

  • Article
  • Open Access
14 Citations
3,913 Views
14 Pages

Protective Effects on 60Co-γ Radiation Damage of Pine Cone Polyphenols from Pinus koraiensis-Loaded Chitosan Microspheres In Vivo

  • Sujuan Shao,
  • Juanjuan Yi,
  • Joe M. Regenstein,
  • Cuilin Cheng,
  • Hua Zhang,
  • Haitian Zhao and
  • Zhenyu Wang

A novel chitosan microsphere for encapsulating pine cone polyphenols (PP) from P. koraiensis was successfully prepared using an emulsion crosslinking technique. The characteristics of pine polyphenol-loaded microspheres (PPM) were determined using sc...

  • Article
  • Open Access
26 Citations
4,131 Views
17 Pages

16 October 2019

The present work discusses the adsorptive removal of a phenolic pollutant, i.e., 2,4,6-trichlorophenol (TCP), using low cost untreated agricultural waste pine cone powder (PCP). The present biosorbent was thoroughly characterized with the help of FTI...

  • Article
  • Open Access
3 Citations
2,704 Views
19 Pages

26 July 2024

Hygroscopic seed-scale movement is responsible for the weather-adaptive opening and closing of pine cones and for facilitating seed dispersal under favorable environmental conditions. Although this phenomenon has long been investigated, many involved...

  • Article
  • Open Access
7 Citations
1,874 Views
19 Pages

Fast Pyrolysis of Tea Bush, Walnut Shell, and Pine Cone Mixture: Effect of Pyrolysis Parameters on Pyrolysis Crop Yields

  • Turgay Kar,
  • Ömer Kaygusuz,
  • Mükrimin Şevket Güney,
  • Erdem Cuce,
  • Sedat Keleş,
  • Saboor Shaik,
  • Abdulhameed Babatunde Owolabi,
  • Benyoh Emmanuel Kigha Nsafon,
  • Johnson Makinwa Ogunsua and
  • Jeung-Soo Huh

14 September 2023

Liquid products obtained by the fast pyrolysis process applied to biomass can be used as chemical raw materials and liquid fuels. In this study, tea bush, walnut shell, and pine cone samples selected as biomass samples were obtained from Trabzon and...

  • Article
  • Open Access
104 Citations
10,291 Views
16 Pages

Chemical Composition and Antioxidant Activities of Three Polysaccharide Fractions from Pine Cones

  • Ren-Bo Xu,
  • Xin Yang,
  • Jing Wang,
  • Hai-Tian Zhao,
  • Wei-Hong Lu,
  • Jie Cui,
  • Cui-Lin Cheng,
  • Pan Zou,
  • Wei-Wei Huang and
  • Xing-Long Hu
  • + 2 authors

5 November 2012

The traditional method of gas chromatography-mass spectrometry for monosaccharide component analysis with pretreatment of acetylation is described with slight modifications and verified in detail in this paper. It was then successfully applied to the...

  • Article
  • Open Access
6 Citations
2,258 Views
10 Pages

2 March 2023

The sporadic cone production of longleaf pine (Pinus palustris Mill.) challenges the restoration of the longleaf pine ecosystem. While much has been learned about longleaf pine cone production at the stand level, little information exists at the tree...

  • Article
  • Open Access
1,222 Views
17 Pages

Valorisation of Forest Waste into Natural Textile Dyes—Case Study of Pine Cones

  • Anna Barreto,
  • Jorge M. Martins,
  • Nuno Ferreira,
  • Isabel Brás and
  • Luisa H. Carvalho

30 April 2025

The pine cone is an important forest product for the Portuguese economy. However, it is associated with environmental impacts, such as the generation of waste and the increased risk of forest fires. The objective of this research is to valorise waste...

  • Article
  • Open Access
36 Citations
4,948 Views
22 Pages

Valorization of Pine Cones (Pinus nigras) for Industrial Wastewater Treatment and Crystal Violet Removal: A Sustainable Approach Based on Bio-Coagulants and a Bio-Adsorbent

  • Ouiem Baatache,
  • Kerroum Derbal,
  • Abderrezzaq Benalia,
  • Ines Aberkane,
  • Qamar Ezamene Guizah,
  • Amel Khalfaoui and
  • Antonio Pizzi

11 January 2024

Pine cones are a widely available and abundant natural resource in Algeria, and they are rich in active molecules. This study investigated the valorization of Pine cones as a natural and abundant bio-coagulant in raw form (powder) and extract form. T...

  • Article
  • Open Access
4 Citations
3,053 Views
15 Pages

Influence of the Duration of Microwave Irradiation of Scots Pine (Pinus sylvestris L.) Cones on the Quality of Harvested Seeds

  • Monika Aniszewska,
  • Arkadiusz Gendek,
  • Ewa Tulska,
  • Paulina Pęska and
  • Tadeusz Moskalik

4 December 2019

To improve the process of seed extraction, new solutions have been investigated in an attempt to develop guidelines for the construction of small seed extraction equipment. One of the solutions proposed in this field is the use of electromagnetic rad...

  • Article
  • Open Access
2 Citations
2,379 Views
12 Pages

24 April 2023

Sporadic cone (or seed) production challenges longleaf pine forest restoration. Characterizing annual cone production change from long-term monitored data provides functional information on the foundational species of this imperiled ecosystem. In thi...

  • Article
  • Open Access
7 Citations
5,189 Views
27 Pages

Antioxidant and Laxative Effects of Methanol Extracts of Green Pine Cones (Pinus densiflora) in Sprague-Dawley Rats with Loperamide-Induced Constipation

  • Hee-Jin Song,
  • Ayun Seol,
  • Jumin Park,
  • Ji-Eun Kim,
  • Tae-Ryeol Kim,
  • Ki-Ho Park,
  • Eun-Seo Park,
  • Su-Jeong Lim,
  • Su-Ha Wang and
  • Dae-Youn Hwang
  • + 3 authors

31 December 2024

Oxidative stress is the key cause of the etiopathogenesis of several diseases associated with constipation. This study examined whether the green pine cone can improve the symptoms of constipation based on the antioxidant activities. The changes in t...

  • Article
  • Open Access
63 Citations
8,920 Views
16 Pages

Characterization and Bioactivity of Polysaccharides Obtained from Pine Cones of Pinus koraiensis by Graded Ethanol Precipitation

  • Pan Zou,
  • Xin Yang,
  • Wei-Wei Huang,
  • Hai-Tian Zhao,
  • Jing Wang,
  • Ren-Bo Xu,
  • Xing-Long Hu,
  • Si-Yan Shen and
  • Di Qin

19 August 2013

Pinus koraiensis polysaccharides (PKP) were extracted by hot water from P. koraiensis pine cones. Five polysaccharide fractions named PKP-A, PKP-B, PKP-C, PKP-D and PKP-E were successfully separated at final ethanol concentrations of 30%, 50%, 60%,...

  • Article
  • Open Access
2 Citations
2,194 Views
19 Pages

18 October 2023

Monitoring water consumption dynamics across the geographic range of an ecosystem may indicate the possible variation and stress in a biome. Here, model output data based on remote sensing (1979–2022) were used to examine the water consumption...

  • Article
  • Open Access
2 Citations
1,382 Views
26 Pages

4 September 2025

This study investigated the sorption properties of the biomass of larch (LaC), pine (PiC) and spruce cones (SpC) in relation to the anionic dye Reactive Black 5 (RB5) and cationic Basic Red 46 (BR46). The scope of the study included the properties of...

  • Article
  • Open Access
2 Citations
3,383 Views
10 Pages

7 May 2022

Seed production in Pinus pinaster Aiton is not usually considered a limiting factor for natural regeneration; instead, seed weight is a more limiting factor in successful pine recruitment. Divergent relationships between seed weight and germination r...

  • Article
  • Open Access
18 Citations
5,852 Views
15 Pages

3 January 2020

Kernels found in stone pinecones are of great economic value, often surpassing timber income for most forest owners. Visually evaluating cone production on standing trees is challenging since the cones are located in the sun-exposed part of the crown...

  • Review
  • Open Access
34 Citations
6,191 Views
29 Pages

16 February 2019

Umbrella pine (Pinus pinea L.) cones take three years to develop. With the increasing frequency of extreme droughts, water available for trees has decreased—climate change is a reality. The cone’s survival in its first two years of develo...

  • Article
  • Open Access
20 Citations
3,391 Views
22 Pages

13 September 2023

To alleviate the increasing energy crisis and achieve energy saving and consumption reduction in building materials, preparing shape-stabilized phase-change materials using bio-porous carbon materials from renewable organic waste to building envelope...

  • Article
  • Open Access
5 Citations
2,030 Views
12 Pages

25 March 2024

Sustainable forest management, which accounts for the multiple roles played by forests, includes seed collection from selected areas for forest renewal and regeneration. The process of harvesting conifer seeds generates considerable amounts of waste...

  • Article
  • Open Access
1,100 Views
19 Pages

Liposomal Encapsulation of Pine Green Cone Essential Oil: The Influence of the Carrier on the Enhancement of Anti-Inflammatory Activity

  • Snježana Mirković,
  • Vanja Tadić,
  • Marina Tomović,
  • Anica Petrović,
  • Marijana Andjić,
  • Jovana Bradić,
  • Sanja Perać,
  • Aleksandar Radojković,
  • Jelena Jovanović and
  • Ana Žugić

Background/Objectives: This study aimed to investigate the traditionally claimed anti-inflammatory effect of essential oil (EO) derived from pine green cones per se and after encapsulation into liposomes, which is expected to enhance its bioactivity...

  • Article
  • Open Access
4 Citations
2,770 Views
11 Pages

26 July 2021

A critical issue in effective post-fire regeneration and re-establishment of a burnt forest is the stage concerning the burned stands. When stands are mature and produce seeds, the regeneration can theoretically be achieved, while in the case of imma...

  • Article
  • Open Access
10 Citations
2,066 Views
21 Pages

Different Modelling Approaches to Determine Suitable Areas for Conserving Egg-Cone Pine (Pinus oocarpa Schiede) Plus Trees in the Central Part of Mexico

  • Martin Enrique Romero-Sanchez,
  • Mario Valerio Velasco-Garcia,
  • Ramiro Perez-Miranda,
  • Efrain Velasco-Bautista and
  • Antonio Gonzalez-Hernandez

9 December 2022

Various spatial modelling methods and tools have been used in ecology and biogeography. The application of these options serves a dual function: first, they offer information about the potential distribution of species to understand the richness and...

  • Article
  • Open Access
6 Citations
5,819 Views
19 Pages

Quantification of the Ability of Natural Products to Prevent Herpes Virus Infection

  • Kunihiko Fukuchi,
  • Hiroshi Sakagami,
  • Yoshiaki Sugita,
  • Koichi Takao,
  • Daisuke Asai,
  • Shigemi Terakubo,
  • Hiromu Takemura,
  • Hirokazu Ohno,
  • Misaki Horiuchi and
  • Takaaki Oizumi
  • + 5 authors

6 October 2020

Background: Herpes simplex virus (HSV) is usually dormant and becomes apparent when body conditions decline. We investigated the anti-HSV activity of various natural and synthetic compounds for future clinical application. Methods: Mock- and HSV-infe...

  • Article
  • Open Access
398 Views
27 Pages

Pine Bark as a Lignocellulosic Resource for Polyurethane Production: An Evaluation

  • Alexander Arshanitsa,
  • Matiss Pals,
  • Alexandra Vjalikova,
  • Laima Vevere,
  • Oskars Bikovens and
  • Lilija Jashina

29 December 2025

This study explores the potential of pine bark—a highly accessible and underexploited by-product of forestry and food processing—as a renewable raw material for rigid polyurethane (PUR) foam production. Under optimal extraction conditions...

  • Article
  • Open Access
1 Citations
1,252 Views
17 Pages

20 February 2025

In this study, the morphological and anatomical characteristics of the growth of the internal ovules and the dynamic changes in the content of endogenous hormones during the development of Korean pine (Pinus koraiensis Siebold & Zucc.) cones were...

  • Article
  • Open Access
10 Citations
3,074 Views
9 Pages

Analyses of Pellets Produced from Spruce Sawdust, Spruce Bark, and Pine Cones in Different Proportions

  • Nikola Čajová Kantová,
  • Michal Holubčík,
  • Alexander Čaja,
  • Juraj Trnka and
  • Jozef Jandačka

8 April 2022

A lot of residual biomass has energy value and can be used for further applications through suitable treatments, such as pelletization. This treatment can improve properties, mainly energy density, but can also lead to problems due to their low ash m...

  • Article
  • Open Access
2 Citations
2,073 Views
14 Pages

Green Carbon Dots from Pinecones and Pine Bark for Amoxicillin and Tetracycline Detection: A Circular Economy Approach

  • Saheed O. Sanni,
  • Ajibola A. Bayode,
  • Hendrik G. Brink,
  • Nils H. Haneklaus,
  • Lin Fu,
  • Jianping Shang and
  • Hua-Jun Shawn Fan

11 March 2025

Over the years, the abuse of antibiotics has increased, leading to their presence in the environment. Therefore, a sustainable method for detecting these substances is crucial. Researchers have explored biomass-based carbon dots (CDs) to detect vario...

  • Article
  • Open Access
5 Citations
3,278 Views
17 Pages

Cone-Bearing Branches of Pinus koraiensis Are Not Carbon Autonomous during Cone Development

  • Haibo Wu,
  • Dongsheng Yin,
  • Roberto Luis Salomón,
  • Jesús Rodríguez-Calcerrada,
  • Jianying Zhang,
  • Peng Zhang and
  • Hailong Shen

16 September 2021

Cone development in conifer species is crucial to ensure sexual regeneration. A better understanding of carbon (C) source-sink relations at the branch level can guide strategies for improving resource allocation to reproduction. In particular, the ev...

  • Article
  • Open Access
5 Citations
3,038 Views
20 Pages

10 February 2019

Research Highlights: When biotic interactions such as disease alter both the seed production capacity of stands, and seedling survivorship, the relative importance of seed availability versus substrate specificity may alter future regeneration opport...

  • Article
  • Open Access
8 Citations
4,551 Views
19 Pages

In the Kozak Basin, which is the most important pine nut production and trade center in Turkey, there has been a significant decrease in production recently. In this study, the perspectives of the farmers in this area were investigated, specifically...

  • Article
  • Open Access
4 Citations
2,769 Views
14 Pages

Volatile Compound Chemistry and Insect Herbivory: Pinus edulis Engelm. (Pinaceae) Seed Cone Resin

  • Tyler M. Wilson,
  • Michael C. Rotter,
  • Emma A. Ziebarth and
  • Richard E. Carlson

13 September 2023

Pinus edulis Engelm. (pinyon pine) is a tree in the Pinaceae family with wide geographic distribution throughout dry forests of western North America. Pinyon pine seed cones, which mature over a 2-year period before shedding seed, are often resinous....

  • Article
  • Open Access
8 Citations
5,472 Views
11 Pages

Potential Factors behind the Decline of Pinus pinea Nut Production in Mediterranean Pine Forests

  • Yara El Khoury,
  • Elise Noujeim,
  • Giovanni Bubici,
  • Eustachio Tarasco,
  • Charbel Al Khoury and
  • Nabil Nemer

28 August 2021

Mediterranean stone pine nut is appreciated for its high economic and nutritional value. Starting in 2012, Pinus pinea nut production declined throughout the Mediterranean area. The dry cone syndrome associated with this decline and the introduction...

  • Article
  • Open Access
6 Citations
4,596 Views
22 Pages

Whitebark Pine in Crater Lake and Lassen Volcanic National Parks: Assessment of Stand Structure and Condition in a Management and Conservation Perspective

  • Jenell I. Jackson,
  • Sean B. Smith,
  • Jonathan C.B. Nesmith,
  • Leigh Ann Starcevich,
  • Jennifer S. Hooke,
  • Steve Buckley and
  • Erik S. Jules

21 September 2019

Whitebark pine (Pinus albicaulis. Engelm.) is vulnerable to a number of threats including an introduced pathogen (Cronartium ribicola J.C. Fisch.), epidemic levels of native mountain pine beetle (Dendroctonus ponderosae Hopkins), fire suppression, an...

  • Article
  • Open Access
833 Views
17 Pages

Phytochemical Screening and Biological Activity of Female and Male Cones from Pinus nigra subsp. laricio (Poir.) Maire

  • Mary Fucile,
  • Carmine Lupia,
  • Martina Armentano,
  • Mariangela Marrelli,
  • Ekaterina Kozuharova,
  • Giancarlo Statti and
  • Filomena Conforti

18 November 2025

The Corsican pine (Pinus nigra subsp. laricio (Poir.) Maire), a subspecies of black pine endemic to southern Italy, is widely known for the quality of its valuable timber, and the parts of the plant that are not used for this purpose are considered u...

  • Article
  • Open Access
13 Citations
3,771 Views
16 Pages

The Possibility of Regenerating a Pine Stand through Natural Regeneration

  • Paweł Przybylski,
  • Monika Konatowska,
  • Szymon Jastrzębowski,
  • Anna Tereba,
  • Vasyl Mohytych,
  • Łukasz Tyburski and
  • Paweł Rutkowski

8 August 2021

Scots pine (Pinus sylvestris L.) is a widespread species in Eurasia, but its natural range can be significantly altered by a variety of stressors. The ability of pine to regenerate naturally is significantly reduced by its occurrence in unsuitable ha...

  • Article
  • Open Access
10 Citations
3,474 Views
12 Pages

An Agronomic Approach to Pine Nut Production by Grafting Stone Pine on Two Rootstocks

  • Mercè Guàrdia,
  • Anna Teixidó,
  • Rut Sanchez-Bragado and
  • Neus Aletà

22 October 2021

Stone pine (Pinus pinea) grows in natural stands within the Mediterranean basin and its nut is highly appreciated for its nutritional profile. Nevertheless, a decline in this species due to biotic and abiotic damages is currently being clearly observ...

  • Article
  • Open Access
4 Citations
4,670 Views
11 Pages

An Economical Approach to Distinguish Genetically Needles of Limber from Whitebark Pine

  • Franklin Alongi,
  • Andrew J. Hansen,
  • David Laufenberg,
  • Robert E. Keane,
  • Kristin Legg and
  • Matt Lavin

22 November 2019

Whitebark pine is difficult to distinguish from limber pine when seed cones are not present. This is often the case because of young stand age, growth at environmental extremes, or harvesting by vertebrate species. Developing an economical genetic id...

  • Article
  • Open Access
3 Citations
1,591 Views
20 Pages

Stochastic Optimization of the Management Schedule of Korean Pine Plantations

  • Qianping Tong,
  • Xingji Jin,
  • Timo Pukkala,
  • Lihu Dong and
  • Fengri Li

28 May 2024

Korean pine is one of the most important tree species in northeastern China, where Korean pine plantations produce timber and edible seeds. Often, seeds create more income than timber. Predicting the timber and cone yields of alternative management s...

  • Article
  • Open Access
1 Citations
827 Views
20 Pages

15 May 2025

This article aimed to incorporate the coordinated construction of classifiers to develop a model for predicting the pyrolysis of loose biomass. For the purposes of application, the ground form of pine cone was used to perform the thermogravimetric an...

  • Article
  • Open Access
17 Citations
4,919 Views
12 Pages

5 July 2018

The paper presents gross and net calorific values, ash content, conversion factors, and bulk density for different-sized spent cones of Scots pine Pinus sylvestris L., Norway spruce Picea abies L., European larch Larix decidua Mill., and Silver fir A...

  • Article
  • Open Access
21 Citations
3,837 Views
14 Pages

28 October 2021

The aim of the study was to analyze the polyphenolic profile of cone extracts of Douglas fir, Scots pine and Korean fir, and to study their antioxidant activity. The mechanism of electro-oxidation of polyphenols (such as procyanidins and catechins) f...

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