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Industrial Crops and Products
Elsevier Science Publishers
Industrial Crops and Products

Elsevier Science Publishers

0926-6690

Industrial Crops and Products/Journal Industrial Crops and ProductsSCIISTPEI
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    Genome wide association study identifies candidate genes related to fatty acid components in upland cotton (Gossypium hirsutum L.)

    Xin, YueMa, JianjiangSong, JikunJia, Bing...
    13页
    查看更多>>摘要：As an important source of edible vegetable oil, cottonseed oil and its fatty acid composition that determines its nutritional value have attracted growing attention in recent years. For the identification of the quantitative trait loci (QTLs) underpinning cottonseed oil content and fatty acid components, 83 representative upland cotton accessions grown in multiple environments were used in a genome-wide association study (GWAS) base on a CottonSNP63K array. Two, 8, 35, 26, 1, 3, 7 and 50 QTLs were identified for myristicoleic acid, palmitic acid, palmitoleic acid, oleic acid, linoleic acid, linolenic acid, total fatty acids and oil content, respectively. Four stable QTLs related to oleic acid accumulation, including qOA-D11-1, qOA-A05-2, qOA-D01-1, and qOA-D07-4, were identified. The candidate genes for these QTLs were further suggested as Gh_D11G0990, Gh_A05G2242, Gh_D01G2016 and Gh_D07G1914, respectively, based on haplotype block analysis and strong and direct linkage disequilibrium between significant SNPs and the genes. The ectopic expression of Gh_D01G2016 in yeast resulted in reductions in oil content and oleic acid content by 18.1% and 9.91%, respectively. The identification of Gh_D01G2016 as a candidate gene in regulating oil synthesis not only facilitates the understanding of the intricate mechanism underpinning the cottonseed oil biosynthesis, but also provide a potentially useful tool for molecular breeding and genetic modification of cottonseed oil.
      原文链接:
    • NSTL
    • Elsevier

    Synthesis of cationic waterborne polyurethane via thiol-ene click reaction and catechol chemistry to improve the performance of soybean meal adhesives

    Li, ZhiSun, YiPang, HuiwenMa, Chao...
    10页
    查看更多>>摘要：The development of bio-based adhesives comprised of low-cost, renewable, and accessible biomass resources with high adhesion and toughness is needed in wood-based panel industry. Herein, a novel cationic waterborne polyurethane (CWPU) emulsion was prepared with a hydrophobic long alkyl chain and catechol structure via thiol-ene click reaction and direct emulsification. Then, the obtained emulsions were applied as efficient crosslinkers to enhance the bonding performance of soybean meal (SM) adhesives. The catechol group on polyurethane acted as a secondary reaction platform that formed multiple hydrogen bonds with protein molecules to optimize the mechanical strength and adhesion toughness of the SM resins. In addition, the hydrophobic alkyl chains grafted intertwine and served as a "water-proofer" that hindered the intrusion of water molecules. Consequently, the modified SM/HD@CCWPU resin presented an impressive improvement in its wet bonding strength and toughness to 165.9% and 378.1%, respectively, compared with the pure SM resin. This efficient, ecofriendly, and low-cost design enables the utilization of agricultural byproducts instead of traditional formaldehyde-based products to prepare high-performance adhesives.
      原文链接:
    • NSTL
    • Elsevier

    Deep eutectic solvent (DES) assisted deacidification of acidic oil and retaining catalyst activity: Variables optimization and catalyst characterization

    Lu, WeidongXu, ZihaoLi, MeiyuanMa, Youheng...
    8页
    查看更多>>摘要：Deacidification is a critical step in alkali catalyzed transestrification of acidic oil for biodiesel production. In this work, optimization of the process variables and insights into the mechanisms of deep eutectic solvent (DES) assistance of deacidification of acidic oil catalyzed by Amberlyst 15 were investigated. Specifically, response surface methodology (RSM) and Box-Behnken Design (BBD) were employed to optimize the three process variables, namely temperature, catalysis loading, and molar ratio of methanol to oleic acid. Furthermore, the catalysts before and after used with and without DES assistance were characterized by FTIR and XRD in order to elucidate the chemical mechanisms involved in the process. Results showed that maximum deacidification rate (DR) of 98.02% was achieved in the deacidification process assisted by DES at the optimal process conditions (temperature 72.02oC, catalyst loading 5.05 wt%, and methanol to oleic acid molar ratio 33.02), compared to 89.68% of the control (without DES assistance). Data analysis and verification results further confirmed the suitability of BBD and RSM methods in optimizing the process. More interestingly, dramatic higher catalytic activity (DR of 76.33% vs 64.16%) of Amberlyst 15 with DES assistance compared to that of the control after 4 cycles was observed. Finally, FTIR spectra confirmed that less water absorbed onto the surface of Amberlyst 15 with DES assistance was the major reason for higher DR and better catalyst reusability in comparison with the control.
      原文链接:
    • NSTL
    • Elsevier

    Chilean pepper (Schinus polygamus) ameliorates the adverse effects of hyperglycaemia/dyslipidaemia in high fat diet/streptozotocin-induced type 2 diabetic rat model

    Abdelghffar, Eman A. R.Mostafa, Nada M.El-Nashar, Heba A. S.Eldahshan, Omayma A....
    15页
    查看更多>>摘要：Diabetes is a life-threatening metabolic disease marked by hyperglycaemia, endocrine system abnormalities, and aberrant lipid metabolic profiles. The study targeted to identify the phytochemical constituents of Schinus pol-ygamus leaf extract (SPLE) and evaluate its ameliorative effects on the oxidative stress and metabolic abnor-malities caused by high-fat diet (HFD) with low dose of streptozotocin (STZ) in male rats. The high-performance liquid chromatography-mass spectrometry (HPLC-MS/MS) analysis of SPLE revealed identification of fourteen compounds of phenolic nature, such as gallic acid, catechin, methyl gallate, pentagalloyl-O-hexoside and cate-chin-O-hexoside. The type-2 diabetic mellitus (T2DM) model was established by HFD and STZ (i.p; 30 mg/kg). The T2DM animals orally administrated two doses of SPLE (200 & 400 mg/kg b.w/day) or metformin (400 mg/ kg/day, orally) for one month. The extract dose-dependently enhanced the body weight gain, BMI, hepatorenal toxicity markers, hyperglycaemia, homeostatic model assessment for insulin resistance (HOMA-IR), insulin level, lipid peroxidation and dyslipidaemia of diabetic rats. It also improved insulin sensitivity and antioxidant defense system. Moreover, it modulated the levels of proinflammatory adipokines (adiponectin & leptin). Further, it downregulated inducible pro-inflammatory genes (NF-kappa B & iNOS mRNA expression). The present study elicited antihyperlipidemic, antihyperglycemic, anti-insulin resistance, anti-inflammatory, antioxidant properties of S. polygamus. Thereby, it could be a new adjuvant candidate in the T2DM management.
      原文链接:
    • NSTL
    • Elsevier

    Recycling of deep eutectic solvent for sustainable and efficient pretreatment of corncob

    Yan, GuilongZhou, YuzhenZhao, LiqinWang, Wei...
    8页
    查看更多>>摘要：A deep eutectic solvent (DES), consisting of choline chloride and oxalic acid (ChCl-OX), was used to pretreat corncob. Three different recycling procedures were evaluated in terms of the composition analysis, efficiency of enzymatic hydrolysis, inhibitors formation, XRD and FTIR analysis. The results demonstrated that there were two key factors affecting the pretreatment efficiency for reusing DES, the addition of oxalic acid and the removal of lignin from the recycled ChCl-OX. After ten recycles, the pretreatment efficiencies of the recycled DES, using recycling process with supplemented oxalic acid and removal of lignin from the recovered DES, did not obviously decrease the glucan digestibility and glucose recovery (66.23% and 64.43%, respectively) compared to the original DES pretreatment (72.83% and 68.83%, respectively). The contents of fermentation inhibitors were not obviously increased in the enzymatic hydrolysates, and the cost and pollution were further reduced after the reuse of solvents and recovery of lignin. This study suggests that this recycling method maybe a green, low-cost procedure of biomass pretreatment.
      原文链接:
    • NSTL
    • Elsevier

    Sustainable reuse of palm oil fuel ash in concrete, alkali-activated binders, soil stabilisation, bricks and adsorbent: A waste to wealth approach

    Santhosh, Kumar GedelaSubhani, Sk M.Bahurudeen, A.
    15页
    查看更多>>摘要：Palm oil biomass based power generation is increased in recent times and it leads to the generation of massive amounts of palm oil fuel ash. Due to the challenges associated with the disposal of palm oil fuel ash, earlier studies focused on the reuse of palm oil fuel ash in a variety of applications. However, a comprehensive review on the reuse of palm oil fuel ash is highly limited. Hence, the present review aims to comprehend the potential use of palm oil fuel ash as a pozzolan in concrete, soil stabilisation, and as an adsorbent in waste water treatment. The addition of palm oil fuel ash as pozzolan up to 20% improved the mechanical and durability properties of the blended concrete. Besides, treatment of expansive soil using palm oil fuel ash enhanced its engineering properties. Moreover, the removal efficiencies of Arsenic(V), Lead(II), Cadmium(II), and Chromium(VI) are 50.2%, 90.27%, 68.46%, and 83.59% with the addition of palm oil fuel ash as adsorbent. However, as compared to raw palm oil fuel ash, the treated palm oil fuel ash exhibited superior performance in concrete and soil stabilisation.
      原文链接:
    • NSTL
    • Elsevier

    Development of metallic wood with enhanced physical, mechanical, and thermal conduction properties based on a self-driven penetration mechanism

    Zhao, XiangyuHe, LuxiZhang, TianfangGao, Jingjing...
    9页
    查看更多>>摘要：High-performance wood composite materials have attracted an increasing interest in recent years due to their excellent mechanical and thermal properties obtained by wood metallization. However, the existing methods for wood metallization generally result in structural damage to wood cell walls and large amounts of energy consumption caused by high-pressure treatment. Herein, a high-efficiency, energy-saving, self-driven wood metallization method was proposed for the fabrication of metallic wood based on high-low temperature alternating cycle treatment and the control of the moisture content in wood. The results show that a high weight percent gain of 544.65% was reached for the metallic wood with the dimensions of 20 mm x 20 mm x 20 mm. The density of the metallic wood was about 5.85 times higher than that of the unmodified wood. In addition, the compression strength and thermal conductivity of the metallic wood could be up to 3 times and 10 times higher than those of the unmodified wood, respectively. Interestingly, the penetration effect was immune to the wood sample dimensions applied here. The further mechanism analysis of the penetration of the low melting point alloy into the wood suggest that the vacuum effect in the wood channels caused by the change of water in the wood channels with the temperature difference contributed to providing the driving force and reducing the internal resistance, thus achieving rapid penetration. The modified metallic wood with enhanced physical, mechanical, and thermal properties can be potentially utilized in construction and heat-conductive flooring.
      原文链接:
    • NSTL
    • Elsevier

    Optimization of alkali extraction, structure, and antioxidant activity of protein-bound polysaccharide from seeds of Plantago ovata Forssk

    Nuerxiati, RehebatiMutailifu, PaiheerdingLu, ChunfangAbuduwaili, Aytursun...
    14页
    查看更多>>摘要：In this study, the effects of different solvents on the viscosity of the seeds of Plantago ovata Forssk (POF) were compared to select the extraction solvent; then, a three-level and four-variable Box-Behnken design (BBD) was applied to determine the optimum extraction conditions for the maximum yields of polysaccharides from POF. Two novel protein-bound heteropolysaccharides (POFG-1a and POFG-2a) with molecular weights of 118 kDa and 113 kDa were isolated and purified by ethanol fractionation precipitation, DEAE-650 M anion exchange column chromatography, and Sephadex G-100 column chromatography. POFG-1a and POFG-2a contain 49.6% and 17.2% of polysaccharide, 26.9% and 56.4% of protein, 9.1% and 5.0% of uronic acid, respectively; they are rich in monosaccharides, Ara, Gal, and Rha, and amino acids, Ser, Pro, Ile, and Phe. Based on FT-IR, beta-elimination, methylation analysis, NMR spectroscopy, and some literature data, it was found that POFG-1a is a homogeneous acidic protein-bound heteropolysaccharide with O-glycosidic linkage. The main chain of POFG-1a is connected by 1 -> 4 Araf and 1 -> 5 Araf with a high degree of branching, connected to the branch at the O-2 and O-3 positions of 1 -> 5 Araf. The POFGs exhibited strong scavenging activity on DPPH, ABTS, and NO free radicals, which is rarely observed in other plant polysaccharides. These results indicate that POFGs might have potential applications in the medical and food industries as novel natural antioxidants.
      原文链接:
    • NSTL
    • Elsevier

    A soy protein-based film by mixed covalent cross-linking and flexibilizing networks

    Xu, YantaoHan, YufeiChen, MingsongLi, Jingchao...
    10页
    查看更多>>摘要：In order to develop a strong, tough, water-resistant, and mildew-resistant soy protein film replacing petroleum -based films, in this study, a covalent and hydrogen bond double network structure was constructed in soy protein film using self-synthesized crosslinker triglycidylamine (TGA), soy protein (SPI), and poly(vinyl alcohol) (PVA). The covalent bond network from the crosslinking reaction between TGA and SPI as the skeleton structure improved the tensile strength and water resistance of the film. The hydrogen bond network from interaction between PVA and SPI as a sacrificial bond network to improve the toughness of the film. Compared with the SPI film, the tensile strength and the insoluble matter content of the resultant film increased by 261.2% and 22.1%, respectively. The elongation at break of film increased by 106 times and the fracture toughness improved 183 times. Notably, the resultant film has anti-fungal property, which extends the anti-mold time of film to more than two weeks. This double network construction strategy effectively enhanced the soy protein film and can be applied to reinforce other composite materials and bio adhesives.
      原文链接:
    • NSTL
    • Elsevier

    Incorporation of essential oil from Vitex gardneriana (Lamiaceae) in microemulsions systems based on mineral and cottonseed oils increased its bioactivity against a coconut pest mite

    Barreto, Ighor CostaCosta, Salvana Priscylla MansoSantos, Adriana de JesusFarias, Adriano Pimentel...
    8页
    查看更多>>摘要：Coconut (Cocos nucifera L.) is an important cash crop for Asia, Africa and tropical America. The coconut mite, Aceria guerreronis Keifer (Acari: Eriophyidae) is a major coconut pest, inflicting heavy damage to fruits, thereby reducing yields and farmers profitability. Previous research has demonstrated that high contents of sesquiterpenes compounds present in the essential oil of Vitex gardneriana Schauer (Lamiaceae) (EOVG) showed high potential to control A. guerreronis. Systems stabilized by surfactants, such as microemulsions (MEs), are promising to carry essential oils due to their solubilization and protection properties, generally allow for greater spreadability, wettability and have thermodynamic stability and lower viscosity. Here, we compared the acaricidal activity of MEs containing EOVG a based cottonseed oil (CO) and mineral oil (MO) as different oily phases. MEs formulations were obtained through the pseudoternary phase diagram using a 1:1 mixture of polysorbate 80: propylene glycol as surfactant and co-surfactant, respectively, and CO and MO as oily phases and water as aqueous phase. The MEs were characterized by polarized light microscopy, dynamic light scattering as well as by rheological behavior. Results based on concentration-mortality bioassays, showed that the toxicity of ME-CO containing EOVG was higher (LC50 = 195 ppm) in comparison with ME-CO without EOVG (LC50 = 669 ppm). Similarly, adding EOVG to ME-MO increased the toxicity further (LC50 = 120 ppm). Moreover, the LC50 of ME with and without EOVG for A. guerreronis was higher than the LC50 determined for the EOVG alone (LC50 = 888 ppm). The MEs containing EOVG in their LC80 and mainly LC50, repelled the mite. Overall, our results indicate that the MEs hold potential for controlling A. guerreronis, especially when EOVG was added with both oil phases.
      原文链接:
    • NSTL
    • Elsevier