Industrial Crops and Products最新文献_第6页

Enhancing bamboo scrimber mechanical properties and mildew resistance through gamma irradiation crosslinking modification 通过伽马辐照交联改性提高竹材的机械性能和防霉性

IF 5.6 1区农林科学

Industrial Crops and Products Pub Date : 2024-10-30 DOI: 10.1016/j.indcrop.2024.119910

Zhuchao Xu , Qiuyi Wang , Yuan Feng , He Han , Yan He , Xin Han , Shengliang He , Meiling Chen , Yanjun Li

{"title":"Enhancing bamboo scrimber mechanical properties and mildew resistance through gamma irradiation crosslinking modification","authors":"Zhuchao Xu , Qiuyi Wang , Yuan Feng , He Han , Yan He , Xin Han , Shengliang He , Meiling Chen , Yanjun Li","doi":"10.1016/j.indcrop.2024.119910","DOIUrl":"10.1016/j.indcrop.2024.119910","url":null,"abstract":"<div><div>Bamboo scrimber is a dense and strong bamboo-based composite. As a fatal defect of bamboo-based composites, mildew seriously affects their performance and lifespan. Gamma irradiation is an efficient, safe, and environmentally friendly method to crosslink polymers and improve their strength. However, high irradiation doses lead to the decomposition of polymers in bamboo. In addition, moisture within natural bamboo promotes the excitation and reaction of free radicals. Therefore, balancing the irradiation dose with the bamboo moisture is crucial. In this study, the internal components of bamboo were self-crosslinked by controlling the gamma irradiation dose and the moisture content (MC) of bamboo bundles. The results indicated that the 100KGy-MC80 % bamboo scrimber exhibited the best overall performance. The cellulose and lignin were crosslinked by esterification reaction at low doses (≤100KGy), therefore, the modulus of rupture (MOR), the modulus of elasticity (MOE), the compressive strength parallel to grain (CSPG), and the dimensional stability of bamboo scrimber were effectively improved. When the gamma irradiation dose reached 150KGy, the cellulose and hemicellulose decomposed, which reduced free hydroxyl groups, as a result, the MOR, the MOE, and the CSPG decreased while the dimensional stability kept growing. The internal moisture of bamboo promotes the excitation and reaction of free radicals, amplifying the effect of irradiation. The mildew resistance was improved by the reason of the decomposition of hemicellulose and starch, which limit the moisture and nutrient conditions required by mildew.</div></div>","PeriodicalId":13581,"journal":{"name":"Industrial Crops and Products","volume":null,"pages":null},"PeriodicalIF":5.6,"publicationDate":"2024-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142553046","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Areca nut husk biochar as a sustainable carbonaceous filler for cement: Pyrolysis temperature and its effect on characterization, strength, and hydration 亚麻仁壳生物炭作为水泥的可持续碳质填料：热解温度及其对特性、强度和水化的影响

IF 5.6 1区农林科学

Industrial Crops and Products Pub Date : 2024-10-29 DOI: 10.1016/j.indcrop.2024.119883

Balasubramanya Manjunath , Claudiane M. Ouellet-Plamondon , B.B. Das , Subba Rao , Chandrasekhar Bhojaraju , Manu Rao

{"title":"Areca nut husk biochar as a sustainable carbonaceous filler for cement: Pyrolysis temperature and its effect on characterization, strength, and hydration","authors":"Balasubramanya Manjunath , Claudiane M. Ouellet-Plamondon , B.B. Das , Subba Rao , Chandrasekhar Bhojaraju , Manu Rao","doi":"10.1016/j.indcrop.2024.119883","DOIUrl":"10.1016/j.indcrop.2024.119883","url":null,"abstract":"<div><div>This study addresses the gap in sustainable agro-based materials for cement by exploring locally available areca nut husk pyrolyzed into areca nut husk biochar (AB). The research investigated the effect of pyrolysis temperature (300°C, 400°C, and 500°C) on the characteristics of AB and its impact on cementitious performance. The study found that increasing pyrolysis temperatures led to lower yield, greater aromaticity, and increased surface area of AB. Fourier Transform Infrared Spectroscopy (FTIR) analysis showed decreased functional groups in AB at higher temperatures, confirming enhanced carbonization. Thermogravimetric analysis (TGA) revealed greater thermal stability of AB. X-ray diffraction (XRD) indicated a carbon-rich amorphous structure and crystalline graphite carbon formation in AB. Incorporating AB at 2 % into cementitious composites substantially increased the compressive strength compared to the control mortar. At 7 and 28 days, the compressive strength increased by 8 % and 12 % for AB 300, 16 % and 21 % for AB 400, and 27 % and 34 % for AB 500. This improvement was due to the micro filler effect of AB, which improved the compactness of the cementitious matrix. Hydration studies from TGA showed that the addition of AB accelerated early-stage hydration, with the degree of hydration increasing from 46 % (in control mix) to 48–53 % in AB blended mixes using Bhatty’s method. FTIR analysis demonstrated improved hydration of silicate phases and C-S-H formation in the presence of AB, supported by XRD analysis. AB blended mortar reduced the CO<sub>2</sub> equivalent emission by 22 % compared to the control mortar attributed to its carbon sequestration capacity. These results highlight the potential of AB as a sustainable carbonaceous filler for cementitious composites, offering an environmentally friendly option for future research in construction materials.</div></div>","PeriodicalId":13581,"journal":{"name":"Industrial Crops and Products","volume":null,"pages":null},"PeriodicalIF":5.6,"publicationDate":"2024-10-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142539638","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

NAD+ regeneration-coupled enzymatic bioconversion of lignin-derived vanillin into vanillic acid: A cleaner production approach 木质素衍生香兰素到香兰酸的 NAD+ 再生耦合酶生物转化：一种清洁生产方法

IF 5.6 1区农林科学

Industrial Crops and Products Pub Date : 2024-10-29 DOI: 10.1016/j.indcrop.2024.119921

Lingxia Xu , Sivasamy Sethupathy , Zhe Liang , Zhipeng Zhuang , Yewang Zhang , Jianzhong Sun , Daochen Zhu

{"title":"NAD+ regeneration-coupled enzymatic bioconversion of lignin-derived vanillin into vanillic acid: A cleaner production approach","authors":"Lingxia Xu , Sivasamy Sethupathy , Zhe Liang , Zhipeng Zhuang , Yewang Zhang , Jianzhong Sun , Daochen Zhu","doi":"10.1016/j.indcrop.2024.119921","DOIUrl":"10.1016/j.indcrop.2024.119921","url":null,"abstract":"<div><div>Vanillic acid is a well-known phenolic compound widely used in the food, flavour, cosmetic, and pharmaceutical industries and has been shown to exhibit various biological activities. Considering the environmental burden caused by chemical synthesis of vanillic acid, the enzymatic transformation of vanillin derived from lignin offers a greener alternative to the chemical synthesis of vanillic acid offers a greener and alternative avenue. In the present study, vanillin dehydrogenase (VDH) from <em>Bacillus ligniniphilus</em> L1 and NADH oxidase (NOX) from <em>Streptococcus pyogenes</em> were used for biotransformation of vanillin into vanillic acid. The addition of NOX regenerates NAD<sup>+</sup> from NADH generated by VDH during the biotransformation of vanillin into vanillic acid, which eliminates the need for continuous addition of the expensive coenzyme NAD<sup>+</sup>. To further improve the stability and reusability of VDH and NOX, cross-linked enzyme aggregates (Combi-CLVNAs) were obtained and the results showed better NAD<sup>+</sup> regeneration and vanillic acid production. Fed-batch addition of vanillin to the reaction resulted in the production of 44.21 mM vanillic acid using 2 mM NAD<sup>+</sup> in 31 h which was 2.06- and 22.5-fold higher than that of free enzymes and without NOX, respectively. A total of 149.98 mM vanillic acid was synthesized using Combi-CLVNAs at the end of 4 cycles. As a poof of this concept, Combi-CLVNAs were successfully used to produce vanillic acid (38.69 mM) from vanillin-rich extracts derived from lignin depolymerization. Overall, this study presents an eco-friendly method for transforming vanillin into vanillic acid with NAD+ regeneration, without creating unwanted by-products.</div></div>","PeriodicalId":13581,"journal":{"name":"Industrial Crops and Products","volume":null,"pages":null},"PeriodicalIF":5.6,"publicationDate":"2024-10-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142539736","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Microwave-assisted pyrolysis of biomass and electrode materials from spent lithium-ion batteries: Characteristics and product compositions 微波辅助热解废锂离子电池中的生物质和电极材料：特性和产品成分

IF 5.6 1区农林科学

Industrial Crops and Products Pub Date : 2024-10-29 DOI: 10.1016/j.indcrop.2024.119899

Minyi He , Tianyu Wang , Tong Weng , Yuqing Dong , Jun Zhao , Sui Zhao , Wangjing Ma

{"title":"Microwave-assisted pyrolysis of biomass and electrode materials from spent lithium-ion batteries: Characteristics and product compositions","authors":"Minyi He , Tianyu Wang , Tong Weng , Yuqing Dong , Jun Zhao , Sui Zhao , Wangjing Ma","doi":"10.1016/j.indcrop.2024.119899","DOIUrl":"10.1016/j.indcrop.2024.119899","url":null,"abstract":"<div><div>The development of new energy has promoted the wide application of electric vehicles, but it has also led to a large number of spent lithium-ion batteries (LIBs). Microwave-assisted pyrolysis (MAP) of electrode materials from spent LIBs and biomass has been proven to be an effective method for recovering valuable metals. However, the microwave absorption of these electrode materials, the pyrolysis characteristics of biomass, and their product compositions have not been clearly identified. Herein, the feasibility of several electrode materials from spent LIBs (graphite, LiFePO<sub>4</sub>, and oxide cathodes) as microwave absorbers in MAP was evaluated by vector net analysis. Furthermore, the MAP characteristics of biomass (cellulose, hemicellulose, lignin, and peanut shell) and these electrode materials were investigated, and relevant mechanisms were proposed through product analysis. The results showed that all electrode materials exhibited medium or strong microwave absorption (tanδε > 0.02) at 2.45 GHz, indicating that they are suitable microwave absorbers for MAP. These spent electrode materials significantly increased the mass loss and yield of gaseous products in the MAP of the above biomass, promoting H<sub>2</sub> production and CH<sub>4</sub> decomposition. The oxide cathodes could facilitate the dehydration and aromatization of cellulose and hemicellulose, while LiFePO<sub>4</sub> and graphite might increase the aromatic content in the liquid products due to their strong reducibility for biomass deoxygenation. Moreover, the characterizations of solid products revealed the phase transitions of spent electrode materials before and after MAP with biomass. This study could provide an experimental and theoretical basis for the application of spent electrode materials from lithium-ion batteries in the microwave-assisted pyrolysis of biomass.</div></div>","PeriodicalId":13581,"journal":{"name":"Industrial Crops and Products","volume":null,"pages":null},"PeriodicalIF":5.6,"publicationDate":"2024-10-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142534553","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Water-soluble and environmentally friendly polyvinyl alcohol/straw aerogel for sustainable packaging 用于可持续包装的水溶性环保型聚乙烯醇/秸秆气凝胶

IF 5.6 1区农林科学

Industrial Crops and Products Pub Date : 2024-10-29 DOI: 10.1016/j.indcrop.2024.119895

Hao Jiang , Linxin Yang , Guoliang Tian , Xinxu Huang , Dawei Xu , Li Li , Xin Zhang , Yijun Li

{"title":"Water-soluble and environmentally friendly polyvinyl alcohol/straw aerogel for sustainable packaging","authors":"Hao Jiang , Linxin Yang , Guoliang Tian , Xinxu Huang , Dawei Xu , Li Li , Xin Zhang , Yijun Li","doi":"10.1016/j.indcrop.2024.119895","DOIUrl":"10.1016/j.indcrop.2024.119895","url":null,"abstract":"<div><div>The packaging industry is transitioning towards sustainability in response to growing environmental concerns and evolving consumer expectations. While biodegradable packaging offers promise, issues such as potential microplastics and uncontrolled degradation hinder its widespread adoption as a perfect solution. Leveraging the water solubility of polyvinyl alcohol (PVA) and agricultural and forestry waste, i.e. straw, we demonstrated a PVA/gelatin/straw aerogel using ice-templating freeze-drying and solid state shear milling (S<sup>3</sup>M) technologies for packaging. The increased porosity of the aerogel enhances specific surface area of PVA, facilitating better interaction with the environment. Furthermore, the inclusion of biomass fillers reduces the phase domain size of PVA, improving water solubility. Gelatin further refines the pore structure, enhancing mechanical properties by providing physical crosslinking points. With an optimized composition, the aerogel achieves a compressive modulus of 0.96 MPa, meeting the strength criteria for polystyrene foam packaging according to QB/T 1649–1992 standards. Importantly, both the aerogel and its aqueous solution demonstrate non-toxicity and environmental friendliness. This study not only presents a series of eco-friendly aerogels but also explores novel applications for PVA in environmentally sustainable packaging.</div></div>","PeriodicalId":13581,"journal":{"name":"Industrial Crops and Products","volume":null,"pages":null},"PeriodicalIF":5.6,"publicationDate":"2024-10-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142534557","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Metal-organic framework and rice husk derived NiCo2O4@SiO2-RH composites for catalytic degradation 用于催化降解的金属有机框架和稻壳衍生 NiCo2O4@SiO2-RH 复合材料

IF 5.6 1区农林科学

Industrial Crops and Products Pub Date : 2024-10-29 DOI: 10.1016/j.indcrop.2024.119913

Jing Zou , Quan Zhang , Li He , Wanhui Jin , Fan Mei , Guangming Cai , Deshan Cheng , Xin Wang

引用次数: 0

Assessment of two-stage hyper- and thermophilic anaerobic co-digestion of briquetted wheat straw and liquid fraction of digestate 对压块小麦秸秆和沼渣液体部分的两阶段超热和嗜热厌氧协同消化进行评估

IF 5.6 1区农林科学

Industrial Crops and Products Pub Date : 2024-10-29 DOI: 10.1016/j.indcrop.2024.119863

Marcin P. Kozera , Alastair J. Ward , Kai Bester , Henrik B. Møller

{"title":"Assessment of two-stage hyper- and thermophilic anaerobic co-digestion of briquetted wheat straw and liquid fraction of digestate","authors":"Marcin P. Kozera , Alastair J. Ward , Kai Bester , Henrik B. Møller","doi":"10.1016/j.indcrop.2024.119863","DOIUrl":"10.1016/j.indcrop.2024.119863","url":null,"abstract":"<div><div>Due to the high resistance of lignocellulosic biomass to anaerobic digestion, the application of an appropriate pre-treatment method is an unavoidable step before subjecting the material to anaerobic digestion (AD). Thus, this study aims to assess a two-stage anaerobic co-digestion of briquetted wheat straw and liquid fraction of digestate under hyper- and thermophilic conditions (65 and 55˚C). Hyperthermophilic AD was applied in the first stage as a pre-digestion step to investigate the impact of increased temperature on the degradation level of lignocellulosic biomass throughout the process. After operating 10 hydraulic retention times the average methane yield was determined to be 248 (±40) L/kgVS with 4 days retention time at hyperthermophilic conditions followed by 14 days thermophilic anaerobic digestion. The methane yield contribution from the briquetted wheat straw was found to be 277 (±26) L/kgVS by subtracting the yield from the liquid fraction of digestate. A mass balance was performed to evaluate the degradability of lignocellulose throughout the process. Hemicellulose and cellulose degradation rates were ∼ 68.7 %, and 68.0 %, respectively for both digestion steps. The experiment reported that two-stage anaerobic co-digestion under hyper- and thermophilic conditions is an attractive strategy for maximizing energy yield from straw by enhancing the lignocellulose degradation and might pose an alternative pre-treatment method of agricultural wastes.</div></div>","PeriodicalId":13581,"journal":{"name":"Industrial Crops and Products","volume":null,"pages":null},"PeriodicalIF":5.6,"publicationDate":"2024-10-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142534766","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Profiling volatile organic compounds of different grape seed oil genotypes using gas chromatography-mass spectrometry and chemometric methods 利用气相色谱-质谱法和化学计量法分析不同葡萄籽油基因型的挥发性有机化合物

IF 5.6 1区农林科学

Industrial Crops and Products Pub Date : 2024-10-29 DOI: 10.1016/j.indcrop.2024.119928

Niloofar Rahmani, Ahmad Mani-Varnosfaderani

{"title":"Profiling volatile organic compounds of different grape seed oil genotypes using gas chromatography-mass spectrometry and chemometric methods","authors":"Niloofar Rahmani, Ahmad Mani-Varnosfaderani","doi":"10.1016/j.indcrop.2024.119928","DOIUrl":"10.1016/j.indcrop.2024.119928","url":null,"abstract":"<div><div>This study utilized gas chromatography-mass spectrometry (GC-MS) for untargeted metabolomic profiling of grape seed oils (GSO) taken from five major grape genotypes in Iran. A total of 175 volatile organic compounds (VOCs) were identified in the GSO, with 20 identified as core molecules being present in all genotypes and samples, and 155 identified as accessory and rare molecules, found in ≥10 % but <100 % of the samples. We hypothesized that specific VOCs in GSO genotypes could be used as reliable indicators to differentiate genotypes and assess their quality. The core molecules mainly consisted of hydrocarbons (35 %), fatty acids (30 %), aldehydes (15 %), and esters (5 %), with putative names assigned to 7 compounds and putative formulas to 10. Of the 155 accessory and rare molecules, 12 volatile compounds were uniquely identified in distinct GSO genotypes, indicating specific phenotypic characteristics associated with different GSO genotypes. Among 20 core molecules, ten were consistently ranked higher in importance through 70 iterations of the Boruta feature selection algorithm. Fatty acids, including Linoleic and Oleic acid, emerged as key compounds for assessing the quality of the GSO samples. Using 10 core molecules as predictors, supervised learning methods such as random forest, support vector machine, partial least squares discriminant analysis, and k-nearest neighbor achieved 100 % accuracy, sensitivity, specificity, and precision in classifying different GSO genotypes for both training and test sets. The identified metabolites served as potential markers for predicting quality and distinguishing genotypes, highlighting the efficiency of metabolomic profiling in analyzing GSO variations and providing insights into GSO quality.</div></div>","PeriodicalId":13581,"journal":{"name":"Industrial Crops and Products","volume":null,"pages":null},"PeriodicalIF":5.6,"publicationDate":"2024-10-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142539634","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Cadmium and lead-induced Bacoside-A production, genetic responses, biomass enhancement, and antioxidant defense in Bacopa monnieri (L.) Wettst.: A comparative analysis 镉和铅诱导的 Bacoside-A 生成、遗传反应、生物量提高和 Bacopa monnieri (L.) Wettst：比较分析

IF 5.6 1区农林科学

Industrial Crops and Products Pub Date : 2024-10-29 DOI: 10.1016/j.indcrop.2024.119893

Abhishek Dadhich, Madan Mohan Sharma

{"title":"Cadmium and lead-induced Bacoside-A production, genetic responses, biomass enhancement, and antioxidant defense in Bacopa monnieri (L.) Wettst.: A comparative analysis","authors":"Abhishek Dadhich, Madan Mohan Sharma","doi":"10.1016/j.indcrop.2024.119893","DOIUrl":"10.1016/j.indcrop.2024.119893","url":null,"abstract":"<div><h3>Objective & Method</h3><div>This study investigated the impact of cadmium (Cd) and lead (Pb) on morpho-physiological traits, phytochemical composition and Bacoside-A accumulation in <em>Bacopa monnieri</em> (BM), using metal concentrations optimized from plant samples grown near industrial areas. BM plants were subjected to different concentrations of Cd and Pb.</div></div><div><h3>Results</h3><div>Growth parameters including root length, shoot length and biomass exhibited significant increase in presence of both the heavy metals and maximum increase of upto 30 % and 24.3 % was obtained at 100 µM Cd and 50 µM Pb, respectively. Similarly, substantial improvement was also recorded in physiological properties such that chlorophyll content and antioxidant activity increased ∼ 25 % and ∼35 %, respectively in the presence of Cd. Both metals led to higher Bacoside-A accumulation, such that Cd led to 40 % increase and Pb led to 25 % increase in the content <em>w.r.t.</em> control. The responses under stress conditions were further authenticated using RAPD analysis, which revealed a significant genotoxic effect showing stress-responsive genetic variations that can be critical for understanding plant adaption mechanisms.</div></div><div><h3>Conclusion</h3><div>This study affirmed that moderate levels of heavy metals (50 µM −100µM) could stimulate growth and secondary metabolite production in BM. Therefore, BM should be considered for phytoremediation in industrial areas, leveraging its ability to thrive under heavy metal stress and accumulate beneficial secondary metabolites for pharmaceutical industry.</div></div>","PeriodicalId":13581,"journal":{"name":"Industrial Crops and Products","volume":null,"pages":null},"PeriodicalIF":5.6,"publicationDate":"2024-10-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142539635","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Longan seed tannins as a quality tyrosinase inhibitor and browning resistance agent: Activity and mechanism 龙眼籽单宁作为一种优质酪氨酸酶抑制剂和抗褐变剂：活性和机理

IF 5.6 1区农林科学

Industrial Crops and Products Pub Date : 2024-10-29 DOI: 10.1016/j.indcrop.2024.119918

Weiming Chai , Tingting Shao , Shanmei Zeng, Yiwen Guo, Yifeng Wu, Wenshuang Wei, Qiuxia Pan, Xiao-Lei Xia

{"title":"Longan seed tannins as a quality tyrosinase inhibitor and browning resistance agent: Activity and mechanism","authors":"Weiming Chai , Tingting Shao , Shanmei Zeng, Yiwen Guo, Yifeng Wu, Wenshuang Wei, Qiuxia Pan, Xiao-Lei Xia","doi":"10.1016/j.indcrop.2024.119918","DOIUrl":"10.1016/j.indcrop.2024.119918","url":null,"abstract":"<div><div>Longan seed tannins (LSTs) were separated and confirmed to be mixtures of procyanidins, ellagitannins, and gallotannins. Multiple spectroscopy methods and molecular simulation technique demonstrated that LSTs were competitive inhibitors of tyrosinase and formed stable complex with the enzyme. The LSTs influenced the micro-environment of amino acid residues in the catalytic center of tyrosinase by non-covalent interactions, and induced stretching of polypeptide framework and conformational change of the enzyme by altering its secondary structures, generating an intense inhibition in enzyme activity. Moreover, LSTs effectively prevented the enzymatic browning of apples by inhibiting the polyphenol oxidation, enhancing the anti-oxidation system, and preventing the lipid peroxidation of cell membrane. This study demonstrated that LSTs were quality tyrosinase inhibitors and browning resistance agents, and provided novel insights for understanding the suppressive mechanism of LSTs on tyrosinase and browning, as well as scientific evidence for their potential application as food preservative.</div></div>","PeriodicalId":13581,"journal":{"name":"Industrial Crops and Products","volume":null,"pages":null},"PeriodicalIF":5.6,"publicationDate":"2024-10-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142539636","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0