Article
Agricultural Engineering
Qizhen Yang, Wei Tang, Lei Li, Menghan Huang, Cuiluan Ma, Yu-Cai He
Summary: Hydrothermal pretreatment is an effective method to improve the saccharification of lignocellulose. In this study, an efficient hydrothermal pretreatment of sunflower straw was conducted, resulting in the removal of 58.8% xylan and 33.5% lignin at a treatment temperature of 180 degrees C for 120 min and a solid-to-liquid ratio of 1:15. Various characterizations confirmed that hydrothermal pretreatment altered the surface structure and increased the accessibility to cellulase. The enzymatic saccharification of the treated sunflower straw achieved a high yield of reducing sugar and glucose and also produced xylo-oligosaccharide in the filtrate.
BIORESOURCE TECHNOLOGY
(2023)
Article
Agricultural Engineering
A. Valles, M. Capilla, F. J. Alvarez-Hornos, M. Garcia-Puchol, P. San-Valero, C. Gabaldon
Summary: The research found that optimizing NaOH pretreatment conditions can effectively increase the efficiency and yield of producing biobutanol from rice straw. The optimal conditions of 5% solid loading and 0.75% NaOH led to a biomass utilization rate of 77.6 g kg RS-1.
BIOMASS & BIOENERGY
(2021)
Article
Agricultural Engineering
Mengjia Wu, Lei Gong, Cuiluan Ma, Yu-Cai He
Summary: The study found that the hydrogen bond donor (HBD) in ChCl-based deep eutectic solvent (DES) had a significant impact on the removal of lignin and xylan during the pretreatment of sorghum straw. By sequentially pretreating with dilute sodium hydroxide and soaking in ChCl:LAC, the enzymatic saccharification efficiency of SS was significantly improved.
BIORESOURCE TECHNOLOGY
(2021)
Article
Biochemistry & Molecular Biology
Hui Chen, Jiangyun Mao, Bo Jiang, Wenjuan Wu, Yongcan Jin
Summary: This study utilized Na2CO3-O-2 pretreatment to enhance sugar recovery from waste wheat straw, achieving high delignification selectivity at relatively low temperature and TTA charge. The low pH value of the spent liquor after Na2CO3-O-2 pretreatment prevented the degradation of carbohydrates, resulting in a promising and cost-efficient biorefining process for the value-added utilization of WWS.
PROCESS BIOCHEMISTRY
(2021)
Article
Agricultural Engineering
Chenjun He, Jinguang Hu, Fei Shen, Mei Huang, Li Zhao, Jianmei Zou, Dong Tian, Qin Jiang, Yongmei Zeng
Summary: The study found that hydrothermal pretreatment significantly improves biogas and bioethanol production from wheat straw, with different temperature ranges recommended for different application scenarios.
INDUSTRIAL CROPS AND PRODUCTS
(2022)
Article
Green & Sustainable Science & Technology
Liyang Ma, Jillian L. Goldfarb, Jiande Song, Chun Chang, Qiulin Ma
Summary: Clean pretreatments such as washing or hydrothermal carbonization can mitigate the problems of slagging, fouling, and fuel segregation in the co-combustion of wheat straw and coal. Water washing can remove most of the potassium and phosphorus, reducing the risk of slagging and fouling. Hydrothermal carbonization can increase the heating value of wheat straw and remove organically-bonded calcium and magnesium. Hydrochars have a higher potassium retention rate and specific surface area. Hydrochars produced at 200 and 220 degrees Celsius show the optimal performance.
JOURNAL OF CLEANER PRODUCTION
(2022)
Article
Agricultural Engineering
Wei Tang, Caoxing Huang, Zhe Ling, Yu-Cai He
Summary: Surfactant-assisted pretreatment improves the enzymatic hydrolysis of lignocellulose by removing xylan and lignin. This study proposes the use of sodium ligno-sulfonate as an additive in alkaline pretreatment and evaluates its influence on the digestibility of wheat straw. The results show that introducing 15 g/L SL to the AP process greatly improves the cellulosic digestibility to 83.5%, compared to 63.6% and 70.2% for hydrothermal and alkaline pretreated WS. This improvement is attributed to the removal of xylan and lignin, leading to positive changes in structural characteristics.
BIORESOURCE TECHNOLOGY
(2023)
Review
Chemistry, Multidisciplinary
Jinyu Tan, Yan Li, Xiang Tan, Hongguo Wu, Hu Li, Song Yang
Summary: Straw biomass is a cost-effective and renewable feedstock for producing valuable chemicals and biofuels. Suitable pretreatment is essential for efficient production of fermentable sugars. Various pretreatment methods can effectively separate components and improve accessibility and susceptibility.
FRONTIERS IN CHEMISTRY
(2021)
Article
Energy & Fuels
Wei Tang, Zhe Ling, Caoxing Huang, Yu-Cai He
Summary: In this study, trace surfactants were used as auxiliaries to enhance the sugar production of wheat straw. The results showed that the addition of 10 g/L cetyltrimethylammonium bromide (CTAB) in 5 g/L NaOH pretreatment significantly increased the delignification and xylan removal efficiency of wheat straw, leading to the collapse of tightly clustered structures. Furthermore, CTAB improved the enzymatic hydrolysis efficiency by enhancing lignin's extraction. This novel pretreatment improved the economic value of wheat straw and provided favorable evidence for the utilization of CTAB in alkali pretreatment.
Article
Engineering, Environmental
Jiming Yang, Shulin Wang, Fudong Bai, Xingmei Lu, Wei He, Zheng Fang, Ning Zhu, Kai Guo
Summary: Pretreatment of lignocellulose with a binary system consisting of 1-n-butyl-3-methylimidazole chloride (BMIMCl) and arginine (Arg) at temperatures higher than the glass transition temperature of lignin (Tg-lignin) can effectively reduce cellulose crystallinity and lignin content, improving enzymatic hydrolysis efficiency and reducing enzyme dosage.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Agricultural Engineering
Helena Poy, Estela Lladosa, Adrian Arcis, Carmen Gabaldon, Sonia Loras
Summary: This study investigates a new green and cost-effective biomass pretreatment method using microwave irradiation and a ternary deep eutectic solvent (DES) for the efficient conversion of rice straw. The results show that under mild pretreatment conditions, the DES can achieve high delignification and nearly complete conversion of polysaccharides in the rice straw, indicating its potential for improved valorization of biomass polysaccharides.
INDUSTRIAL CROPS AND PRODUCTS
(2023)
Article
Engineering, Environmental
Feiyue Shen, Chenjun He, Yuhang Wang, Jinguang Hu, Mei Huang, Li Zhao, Shaobo Zhang, Dong Tian, Fei Shen
Summary: To achieve maximum value from lignocellulosic biomass, a molecule-level design integrated biorefinery is proposed. By combining hydrothermal pretreatment with deep eutectic solvent pretreatment, three upgraded products (ANC, LNS, and LCNF pesticide nanocarrier) can be produced from rice straw. The hydrothermal filtrate is converted into value-added nanocarbon, while the DES extraction increases the phenolic -OH content and prepares lignin nanosphere. The DES swelling of cellulose facilitates nanofibrillation of LCNF as a pesticide carrier. The functionalized LCNF exhibits enhanced adhesion and unique anti-UV ability. This work enables the all-component upgrades of lignocellulose, inspiring the development of sustainable and viable biorefineries.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Energy & Fuels
Cristhian Carrasco, Leif J. Jonsson, Carlos Martin
Summary: Extraction treatment can reduce the recalcitrance of quinoa stalks towards enzymatic saccharification, leading to higher glucan recovery and lower hemicellulose hydrolysis during pretreatment, as well as reduced by-product formation. Pre-extraction enhances glucan susceptibility towards enzymatic hydrolysis, resulting in higher overall conversion values.
Article
Polymer Science
Qianqian Jia, Jiachuan Chen, Guihua Yang, Kefeng Liu, Yueying Wang, Kai Zhang
Summary: This study explored a biological enzyme assisted alkali-oxygen pulping method to improve the delignification efficiency and fiber accessibility of wheat straw. It was found that lipase can remove fat and wax on the surface of wheat straw, while xylanase degraded the hemicellulose components, increasing lignin removal and enhancing the impregnating, diffusion and penetration of alkali. Enzyme pretreatment improved the pulping performance of wheat straw, resulting in increased tensile index, brightness, and pulp yield.
Article
Environmental Sciences
Ali Mohammad Rahmani, Vinay Kumar Tyagi, Neelam Gunjyal, A. A. Kazmi, Chandra Shekhar P. Ojha, Konstantinos Moustakas
Summary: This study investigated the effects of hydrothermal and thermal-alkaline pretreatment on anaerobic co-digestion of wheat straw. The results showed that thermal-alkali pretreatment can increase substrate solubilization and biogas yield, while reducing the formation of recalcitrant compounds.
ENVIRONMENTAL RESEARCH
(2023)
Article
Nutrition & Dietetics
Giuseppina Mandalari, Zara Merali, Peter Ryden, Simona Chessa, Carlo Bisignano, Davide Barreca, Ersilia Bellocco, Giuseppina Lagana, Richard M. Faulks, Keith W. Waldron
EUROPEAN JOURNAL OF NUTRITION
(2018)
Article
Biotechnology & Applied Microbiology
Jia Wu, Adam Elliston, Gwenaelle Le Gall, Ian J. Colquhoun, Samuel R. A. Collins, Ian P. Wood, Jo Dicks, Ian N. Roberts, Keith W. Waldron
BIOTECHNOLOGY FOR BIOFUELS
(2018)
Article
Biotechnology & Applied Microbiology
Jia Wu, Samuel R. A. Collins, Adam Elliston, Nikolaus Wellner, Jo Dicks, Ian N. Roberts, Keith W. Waldron
BIOTECHNOLOGY FOR BIOFUELS
(2018)
Article
Agricultural Engineering
Miriam Kellock, Hannu Maaheimo, Kaisa Marjamaa, Jenni Rahikainen, Heng Zhang, Ulla Holopainen-Mantila, John Ralph, Tarja Tamminen, Claus Felby, Kristiina Kruus
BIORESOURCE TECHNOLOGY
(2019)
Article
Geochemistry & Geophysics
Minna Vikman, Kaisa Marjamaa, Mikko Nykyri, Joe S. Small, Hanna Miettinen, Liisa Heikinheimo, Tuire Haavisto, Merja Itavaara
APPLIED GEOCHEMISTRY
(2019)
Article
Agricultural Engineering
Luciana Reis Fontinelle Souto, Isadora Ferreira da Silva, Jorge L. Ninow, Samuel R. A. Collins, Adam Elliston, Keith W. Waldron
BIOMASS & BIOENERGY
(2019)
Article
Biotechnology & Applied Microbiology
Riin Kont, Ville Pihlajaniemi, Anna S. Borisova, Nina Aro, Kaisa Marjamaa, Judith Loogen, Jochen Buechs, Vincent G. H. Eijsink, Kristiina Kruus, Priit Valjamae
BIOTECHNOLOGY FOR BIOFUELS
(2019)
Article
Biochemistry & Molecular Biology
Rares Birsan, Peter Wilde, Keith W. Waldron, Dilip K. Rai
Article
Materials Science, Paper & Wood
Sathish Kumar Mudedla, Maisa Vuorte, Elias Veijola, Kaisa Marjamaa, Anu Koivula, Markus B. Linder, Suvi Arola, Maria Sammalkorpi
Summary: Enzymatic cleavage of glycocidic bonds is an important method to refine lignocellulosic biomass. This study explored the effects of oxidation defects on the structure and water interactions of cellulose {100} surface, showing that even single oxidations reduce connections within cellulose crystal and enhance water interactions. The findings also revealed different levels of soluble glucose fragments released during LPMO enzyme treatment on different cellulose species, indicating the significance of understanding enzymatic oxidation effects on cellulose nanocrystals and cleavage of soluble products.
Article
Agricultural Engineering
Sara Ceccherini, Jenni Rahikainen, Kaisa Marjamaa, Daisuke Sawada, Stina Gronqvist, Thad Maloney
Summary: The study compares the effects of endoglucanase and lytic polysaccharide monooxygenase on bleached softwood Kraft pulp, finding that a combination of enzymes results in the largest changes, improving properties such as fibrillation and fines content.
INDUSTRIAL CROPS AND PRODUCTS
(2021)
Article
Chemistry, Multidisciplinary
Riin Kont, Ville Pihlajaniemi, Klaus Niemela, Silja Kuusk, Kaisa Marjamaa, Priit Valjamae
Summary: This study evaluated the dynamics of H2O2 in the liquid fractions of different biomasses using an LPMO-based detection tool, revealing that H2O2 acts as an intermediate in the oxidation of compounds in the liquid fractions, with its formation rate higher than its accumulation rate. The liquid fractions of different biomasses have varying effects on the formation of H2O2 and the enzymatic degradation of cellulose.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2021)
Article
Energy & Fuels
Anna S. Borisova, Ville Pihlajaniemi, Riin Kont, Klaus Niemela, Taru Koitto, Atte Mikkelson, Priit Valjamae, Kristiina Kruus, Kaisa Marjamaa
Summary: This study investigates the inhibitory effect of soluble phenolics in hydrothermal pretreatment liquor on Trichoderma reesei enzymes. Cellobiohydrolases were found to be the most sensitive to phenolics inhibition, while xylanases and endoglucanases could mitigate the inhibitory effect. The addition of lytic polysaccharide monooxygenase was found to relieve the negative effect of phenolics, and the hydrolytic activity of commercial enzyme cocktail Cellic Ctec2 was enhanced in the presence of low concentrations of phenolics.
BIOMASS CONVERSION AND BIOREFINERY
(2022)
Article
Materials Science, Paper & Wood
Kaisa Marjamaa, Jenni Rahikainen, Marika Karjalainen, Natalia Maiorova, Ulla Holopainen-Mantila, Matthieu Molinier, Nina Aro, Heli Nygren, Atte Mikkelson, Anu Koivula, Kristiina Kruus
Summary: This study investigated the parameters affecting the efficiency of LPMO in oxidative modification of cotton linters and softwood kraft fibres. The results showed that temperature and pH affected the stability and efficacy of the enzyme. The oxidative enzymatic treatment facilitated fibre dissolution and degradation of fibre surface structures, preventing swelling.
Article
Green & Sustainable Science & Technology
Emanuela Calcio Gaudino, Giorgio Grillo, Silvia Tabasso, Livio Stevanato, Giancarlo Cravotto, Kaisa Marjamaa, Ville Pihlajaniemi, Anu Koivula, Nina Aro, Jaana Uusitalo, Jarmo Ropponen, Lauri Kuutti, Pauliina Kivinen, Heimo Kanerva, Alexander Arshanitsa, Lilija Jashina, Vilhelmine Jurkjane, Anna Andersone, Thomas Dreyer, Gerhard Schories
Summary: This paper reports the dominant physical effects of ultrasound (US) pretreatment on improving delignification of wheat straw. The study demonstrates that ultrasound pretreatment can effectively increase the yield of soluble sugars by making the cellulose more susceptible to enzymatic hydrolysis. The results show that ultrasound pretreatment has advantages over steam explosion pretreatment in terms of environmental impact and cost-benefit analysis.
JOURNAL OF CLEANER PRODUCTION
(2022)
Article
Biotechnology & Applied Microbiology
Miriam Kellock, Jenni Rahikainen, Anna S. Borisova, Sanni Voutilainen, Anu Koivula, Kristiina Kruus, Kaisa Marjamaa
Summary: This study investigated the effect of enzymatically isolated lignin on the hydrolysis of xylan by four glycoside hydrolase family 11 xylanases. It was found that lignin isolated from steam pretreated spruce decreased the hydrolysis yields of xylan, and the degree of inhibition varied among different xylanases. The thermostable xylanases exhibited higher tolerance to lignin, and the presence of N-glycans in the catalytic domain of Xyl40 increased its lignin tolerance. The findings suggest that the thermal stability of xylanases and the structural features contribute to their activity on the lignin surface.
BIOTECHNOLOGY FOR BIOFUELS AND BIOPRODUCTS
(2022)
Article
Chemistry, Applied
M. Graca Dias, Elsa Vasco, Francisco Ravasco, Lufsa Oliveira
Summary: This study estimated the vitamin D intake of "adults" and "elderly" populations in Portugal using the TDS methodology. The results showed that the majority of people had inadequate vitamin D intake, well below the Dietary Reference Values.
Article
Chemistry, Applied
Yanan Wang, Jiachen Shi, Yong-Jiang Xu, Chin-Ping Tan, Yuanfa Liu
Summary: This study investigates the variations in lipid digestion profiles among individuals of different ages using in vitro digestion models. The findings suggest that adults have a more comprehensive lipid digestion compared to infants, and infants tend to release shorter chain length and more saturated free fatty acids during digestion. Additionally, the particle sizes in the stomach of the elderly were consistently larger. This study enhances our understanding of how lipids with different degrees of unsaturation undergo digestion in diverse age groups.
Article
Chemistry, Applied
Hyunjong Yu, Huisu Kim, Pahn-Shick Chang
Summary: Chitosan-pectin emulsion-filled hydrogel (EFH) was developed to enhance the bioaccessibility of lipophilic bioactive compounds through intestinal delivery. The EFH, prepared without crosslinking agents, demonstrated improved mechanical strength and compactness with higher pectin concentration. It retained the emulsion at pH 2.0 and released it at pH 7.4, resulting in enhanced release of free fatty acids and improved bioaccessibility of curcumin.
Article
Chemistry, Applied
Tongze Zhang, Siqi Hong, Jia-Rong Zhang, Pin-He Liu, Siyi Li, Zixian Wen, Jianwei Xiao, Guirong Zhang, Olivier Habimana, Nagendra P. Shah, Zhongquan Sui, Harold Corke
Summary: Lactic acid fermentation significantly affects the morphology and physicochemical properties of proso millet starch, including the formation of surface indentations and small pores, decrease in gelatinization temperatures, and changes in hardness and adhesiveness.
Article
Chemistry, Applied
Liqin Kong, Feng Hong, Peng Luan, Yiping Chen, Yaoze Feng, Ming Zhu
Summary: This study presents a novel impedance biosensor using composite nanomaterials and T1R1 as a signal probe, which can competitively and ultra-sensitively detect umami intensity. The biosensor exhibits exceptional analytical performance and is suitable for food flavor evaluation.
Article
Chemistry, Applied
Kunying Lv, Yixin Yang, Qilong Li, Ran Chen, Liang Deng, Yiwei Zhang, Ning Jiang
Summary: Horse's milk, with its high nutritional value and low allergenic proteins, could be a substitute for cow's milk in infant consumption. A proteomic method was used to identify and compare milk fat globule membrane (MFGM) and whey proteins from different horse breeds. The study found differences in protein composition and functionality, which could support the development of formulas more suitable for human infants.
Article
Chemistry, Applied
Enrique Jacobo Diaz-Montana, Helene Brignot, Ramon Aparicio-Ruiz, Thierry Thomas- Danguin, Maria Teresa Morales
Summary: Sensory perception of virgin olive oil is influenced by phenols and volatiles, which are affected by the composition of the oil and biological factors. This study investigated the effect of saliva and phenols on the release of volatiles, and found that the presence of phenols decreased the release of saturated volatiles.
Article
Chemistry, Applied
Wei Zhou, Rui Zhang, Zhen Cai, Fangfang Wu, Yong Hu, Chao Huang, Kun Hu, Yun Chen
Summary: Environmentally friendly and outstanding pH-responsive cationic starch nanoparticles (CSNP) were prepared from pH-sensitive starch. CSNP exhibited nanosize and regular sphere, highly free-flowing molecular chains, and demonstrated excellent pH responsiveness through multiple emulsion/demulsification transitions.
Article
Chemistry, Applied
Andrea Koo, Vinayak Ghate, Weibiao Zhou
Summary: This study suggests that direct seeding may negatively affect the nutritional quality of crops, causing a decrease in ascorbic acid, vitamin K, and total glucosinolate content.
Article
Chemistry, Applied
Tonghao Du, Yazhou Xu, Xiaoyan Xu, Shijin Xiong, Linli Zhang, Biao Dong, Jinqing Huang, Tao Huang, Muyan Xiao, Tao Xiong, Mingyong Xie
Summary: This study successfully improved the ACE inhibitory activity of black sesame seeds by fermenting them with Lactobacillus Plantarum NCU116 and hydrolyzing them using acid protease. The RF-PSO model was used to predict the ACE inhibitory activity during the hydrolysis process. Eight peptides with ACE inhibitory activity were identified from fermented black sesame seed hydrolysates after separation and screening.
Article
Chemistry, Applied
Yao Liu, Songyi Lin, Kexin Liu, Shan Wang, Qiaozhen Liu, Na Sun
Summary: This study analyzed the structural changes of shrimp proteins during digestion, predicted the immunodominant epitopes, and validated their allergenicity. The results showed that shrimp proteins were degraded into peptides during digestion, but still carried IgE epitopes that trigger allergic reactions.
Article
Chemistry, Applied
Tiantian Fu, Hongwei Cao, Yu Zhang, Xiao Guan
Summary: This study investigates the impact of milling on the active components in rice, with a focus on the stability and bioaccessibility of phenols, VB1, and alpha-GABA during cooking and digestion. The findings show that milling exacerbates the instability of gamma-GABA during cooking and VB1 during digestion, and it affects the bioaccessibility of these active compounds.
Article
Chemistry, Applied
Zhihao Yang, Yanru Hou, Min Zhang, Puxin Hou, Chang Liu, Lu Dou, Xiaoyu Chen, Lihua Zhao, Lin Su, Ye Jin
Summary: This study investigated the molecular mechanism of feeding regimes on lamb flavor by using TMT labeling combined with MS. The results showed that pasture-fed groups had higher levels of amino acids and volatile flavor substances compared to concentrate-fed groups. Additionally, several differentially abundant proteins associated with lamb flavor were identified.
Article
Chemistry, Applied
Zixuan Xie, De Zhang, Junyu Zhu, Qianqian Luo, Jun Liu, Jingtao Zhou, Xiaoyong Wang, Yuqiong Chen, Zhi Yu, Dejiang Ni
Summary: This study investigated the acidification of aroma-enhanced black tea during storage. Analysis of non-volatile substances and organic acids using UPLC-Q-TOF/MS and HPLC revealed a decrease in soluble sugars and amino acids, while an increase in organic acids such as oxalic acid, malic acid, and quinic acid. In vitro experiments further demonstrated that the acidification is a result of the decomposition of sugars and amino acids by heating, as well as the oxidation of aromatic aldehydes. Additionally, the study showed that the taste composition of tea infusion is altered, with reduced amino acids, catechins, soluble sugars, and flavonoids. This research provides a theoretical basis for improving the quality of black tea.
Article
Chemistry, Applied
Lin Wang, Falai Ma, Zihan Li, Yan Zhang
Summary: This study developed time-temperature integrators based on amyloglucosidase@Cu3(PO4)2 nanoflowers for monitoring the freshness of chilled pork. The results showed that the integrators were highly reliable and accurate in predicting the quality of chilled pork.