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Search Results (3)

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Keywords = Sorghum bicolor L. Monech

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10 pages, 1619 KiB  
Article
Influence of the Density in Binderless Particleboards Made from Sorghum
by Antonio Ferrandez-Garcia, Maria Teresa Ferrandez-Garcia, Teresa Garcia-Ortuño and Manuel Ferrandez-Villena
Agronomy 2022, 12(6), 1387; https://doi.org/10.3390/agronomy12061387 - 9 Jun 2022
Cited by 9 | Viewed by 2318
Abstract
In order to fight climate change and decouple economic growth from material use, valorization of waste will be fundamental. Sorghum is one of the most important summer crops in the world. The non-edible parts of the plant, the stalks and leaves are left [...] Read more.
In order to fight climate change and decouple economic growth from material use, valorization of waste will be fundamental. Sorghum is one of the most important summer crops in the world. The non-edible parts of the plant, the stalks and leaves are left over and must be disposed of. This work proposes to use sorghum waste particles as a raw material to manufacture boards and analyze the influence of its density. Particles were sprayed with 10% wt of water and placed in a hot press at 2.1 MPa and 110 °C for 30 min. Eight types of panels were produced with densities ranging from 950 kg/m3 to 1250 kg/m3. The results indicated that the water absorption (WA), modulus of rupture (MOR), modulus of elasticity (MOE) and internal bounding strength (IB) depended on the density. With higher densities, the particleboards showed better physical and mechanical behavior. This study demonstrates that it is technically possible to manufacture adhesive-free particleboards from sorghum residues that comply with European standards and can be used as boards for general applications. The use of these particleboards could be beneficial in fighting climate change and in minimizing the use of natural wood. Full article
(This article belongs to the Special Issue Selected Papers from 11th Iberian Agroengineering Congress)
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10 pages, 430 KiB  
Article
Changes in Phytochemical Compounds and Antioxidant Activity of Two Irradiated Sorghum (Sorghum bicolor (L.) Monech) Cultivars during the Fermentation and Cooking of Traditional Sudanese Asida
by Layla K. Mohamed, Mashair A. Sulieman, Abu ElGasim A. Yagoub, Mohammed A. Mohammed, Haya F. Alhuthayli, Isam A. Mohamed Ahmed, Salah A. Almaiman, Mohammed A. Alfawaz, Magdi A. Osman and Amro B. Hassan
Fermentation 2022, 8(2), 60; https://doi.org/10.3390/fermentation8020060 - 30 Jan 2022
Cited by 10 | Viewed by 3343
Abstract
This study investigated the chemical changes of phytochemicals and antioxidant activity during the preparation of traditional Sudanese asida prepared from gamma-radiated (1.0 and 2.0 kGy) flour of two sorghum cultivars (Tabat and Wad Ahmed). For both cultivars, the irradiation process significantly (p [...] Read more.
This study investigated the chemical changes of phytochemicals and antioxidant activity during the preparation of traditional Sudanese asida prepared from gamma-radiated (1.0 and 2.0 kGy) flour of two sorghum cultivars (Tabat and Wad Ahmed). For both cultivars, the irradiation process significantly (p < 0.05) increased the total phenolic content and antioxidant activity of the raw flour, while it caused a significant reduction in total flavonoid content and tannin content. Traditional asida (fermented food) prepared from irradiated sorghum flour caused a significant reduction in TPC, TFC, and tannin content in both sorghum cultivars, while the antioxidant activities (DPPH, reducing power, and H2O2 scavenging) were significantly increased in both the Tabat (85.0%, 3.8 mg AAE/g, and 84.6%, respectively) and the Wad Ahmed (89.6%, 3.9 mg AAE/g, and 83.1%, respectively) sorghum cultivar grains, particularly in those processed from 2.0 kGy-irradiated flour. A positive high correlation was observed between gamma radiation (2.0 kGy) and the antioxidant activity of asida prepared from both cultivars. In conclusion, traditional fermented asida obtained from irradiated flour showed high antioxidant activity in both sorghum cultivars. Full article
(This article belongs to the Section Fermentation for Food and Beverages)
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16 pages, 340 KiB  
Review
Weed Management Practices to Improve Establishment of Selected Lignocellulosic Crops
by Ioannis Gazoulis, Panagiotis Kanatas, Panayiota Papastylianou, Alexandros Tataridas, Efthymia Alexopoulou and Ilias Travlos
Energies 2021, 14(9), 2478; https://doi.org/10.3390/en14092478 - 26 Apr 2021
Cited by 11 | Viewed by 3183
Abstract
Lignocellulosic biomass is one of the dominant renewable energy resources suited for the production of sustainable biofuels and other energy purposes. This study was focused on weed management strategies that can improve the establishment of six lignocellulosic crops. The studied crops included: giant [...] Read more.
Lignocellulosic biomass is one of the dominant renewable energy resources suited for the production of sustainable biofuels and other energy purposes. This study was focused on weed management strategies that can improve the establishment of six lignocellulosic crops. The studied crops included: giant miscanthus, switchgrass, giant reed, cardoon, sweet sorghum, and kenaf. Delayed planting, increased planting densities, and mulching techniques can suppress weeds in giant miscanthus. Weed competition is detrimental for switchgrass establishment. Seedbed preparation and cultivar selection can determine its ability to compete with weeds. Giant reed is unlikely to get outcompeted by weeds, and any weed control operation is required only for the first growing season. Competitive cultivars and increased seeding rates maximize the competitiveness of cardoon against weeds. Several cultural practices can be used for non-chemical weed management in sweet sorghum and kenaf. For all crops, pre-emergence herbicides can be applied. The available safe post-emergence herbicides are limited. Mechanical weed control during crucial growth stages can provide solutions for sweet sorghum, kenaf, and perennial grasses. Further research is required to develop effective weed management strategies, with emphasis on cultural practices, that can improve the establishment of these prominent lignocellulosic crops. Full article
(This article belongs to the Special Issue Biomass Crops, Agronomic Performance & Emerging Renewable Energy Technologies)
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