CHEMICAL PAPERS
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2023
·Vol. 77
·期 10
·5999-6006
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IF 2.2
Yuan Yifan,He Fuduo,Li Xue,Xu Dehua,Yan Zhengjuan,Wang Xinlong
Corncob has a high yield and contains a large number of cellulose substances. Wet phosphoric acid hydrolysis of corncob is of great significance to the utilization of organic waste, and provides theoretical support for the development of sugar-containing synergistic phosphorus fertilizers. In this study, the kinetics of hydrolysis of corncob by wet process phosphoric acid was investigated. The time evolution of total sugar, xylose and furfural formation during a 12-h hydrolysis was simulated by Saeman and biphasic models within differential acid concentrations and temperatures. The formations of both total sugar and furfural coincide a first-order irreversible reaction, which was not applicable to the Saeman model nor the biphasic model. Meanwhile, xylose formation was more suitable for the Saeman model. The optimal conditions for xylose are: a temperature of 100 °C, a reaction time of 720 min, an acid concentration of 55.6% (w/w). The xylose yield of corncobs was 0.15 g/g in the optimal conditions. Graphical abstract
研究领域:
生物化学
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农业科学
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DOI
高影响因子
Food Packaging and Shelf Life
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2019
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IF 3.63
Li-Xian Zhu,Qin-Bao Lin,Jia-Yi Li,Hong-Mei Zhu,Hong-Sheng Ma,Huai-Ning Zhong,Jing-Jing Pan
In this study, potassium permanganate (KMnO 4 ) consumption on some key raw materials of food contact paper was analyzed, the content of lignin and total sugar in water simulant for KMnO4 consumption test was analyzed by GC–MS and UV–vis respectively, and the contribution to KMnO4 consumption of the paper samples from lignin and total sugar was investigated. The results have shown that cassava starch has the highest KMnO 4 consumption value among all the starches analyzed, and the KMnO 4 consumption of lignin was significantly greater than that of starches and glucose. KMnO 4 consumption of 15 different commercial paper samples and 10 different commercial fiber molding products were analyzed. The results indicated that KMnO 4 consumption of 12 commercial paper samples were exceeded the limit of 40 mg/kg set forth in GB 4806.8 national food safety standard for food contact paper and paper article. The contribution to the KMnO 4 consumption value of paper samples and fiber mold products from lignin and total sugar in water simulant was from 42% to 94% in most of the samples, lignin and total sugar were two main sources of KMnO 4 consumption in food contact paper. It is known that lignin and total sugar are nature materials and they are non-hazardous, which is not appropriate to set such control limit in the food safety standard, therefore, the limit of KMnO4 consumption for food contact paper and paperboard in GB4806.8-2016 should be revised.
研究领域:
食品安全
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分析化学
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DOI
高影响因子
INDUSTRIAL CROPS AND PRODUCTS
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2018
·
IF 3.849
Zhuping Yu,Yangliu Du,Xiaona Shang,Ying Zheng,Jinghong Zhou
Cassava residue (CR), a fibrous material, is a cassava processing by-product. The complex structure of the lignocellulosic material in CR limits effective saccharification; therefore, pretreatment is an essential step in biomass fuel production. This study investigated the hydrolysis of CR lignocellulosic components, using amylase to remove the starch from the CR to produce remaining starch-free CR (RSFCR). Ultra-low acid (ULA) CR pretreatments (a one-step ULA using 0.01% w/w H 2 SO 4 or a two-step ULA using 0.05% H 2 SO 4 ) were applied for durations of 0 to 50 min and at temperatures of 160 to 200 °C. The one-step ULA pretreatment achieved maximum glucose, xylose, and total sugar recoveries of 7.57%, 39.11%, and 15.14%, while the two-step ULA pretreatment attained 9.82%, 58.62%, and 22.08% recoveries, respectively. ULA RSFCR pretreatment degraded a small percentage of the hemicellulose sugars into the inhibitors and formed xylose-rich liquid prehydrolysate and a cellulose-rich solid. The hydrolytic yields of glucose, xylose, and total sugar from the two-step ULA pretreatment with enzymatic hydrolysis were 7.43, 1.41, and 3.32 times higher, respectively, than those from the two-step ULA pretreatment and 1.02, 1.13, and 1.04 times higher than those from the one-step ULA pretreatment with enzymatic hydrolysis. Fermentation inhibition was not detected in the pretreatment methods. These results indicate the feasibility of using two-step ULA combined with enzymatic hydrolysis for RSFCR pretreatment.
研究领域:
生物能源
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生物质转化
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发酵工程
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产品关联
DOI
高影响因子
INDUSTRIAL CROPS AND PRODUCTS
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2022
·
IF 6.449
Muhammad Adnan,Yinjuan Shen,Fumin Ma,Maoyao Wang,Fuhong Jiang,Qian Hu,Le Mao,Pan Lu,Xiaoru Chen,Guanyong He,Muhammad Tahir Khan,Zuhu Deng,Baoshan Chen,Muqing Zhang,Jiangfeng Huang
The near-infrared spectroscopy (NIRS) has been used for efficient characterization and rapid assay of biomass saccharification in other energy plants, but its application in sugarcane is not reported yet. The current study collected a total of 541 sugarcane accessions to take an online NIRS assay. Among these sugarcane collections, we observed large variations in biomass digestibility, particularly for fermentable hexose and total sugar yield from fresh sugarcane stalks, which were detected ranging from 69.88 to 239.86 kg t -1 and 66.56–228.55 kg t -1 respectively. Using the modified partial least squares method, six reliable NIRS models were obtained with a high coefficient of determination ( R 2 ) and the ratio of prediction to deviation (RPD) values during calibration, internal-cross validation and external validation. Notably, the equation for fermentable hexose exhibited the most consistently high R 2 (0.98) and RPD (6.62) values, as well as retaining relatively low root mean square error during calibration (3.74 kg t -1 ) and validation (4.19 kg t -1 ), indicating excellent predictive capacity. All models demonstrated accurate and stable prediction performance in the two-year large-scale germplasm resources evaluation, and the optima accessions with high or low biomass digestibility can be screened out consistently. Therefore, this study provides a precise and consistent NIRS assay for high throughput scanning of biomass digestibility in sugarcane.
研究领域:
植物学
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生物能源
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DOI
高影响因子
ACS Sustainable Chemistry & Engineering
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2017
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IF 5.951
Qiang Yu,Yunxuan Wang,Wei Qi,Wen Wang,Qiong Wang,Shixiang Bian,Yinping Zhu,Xinshu Zhuang,Zhongming Wang,Zhenhong Yuan
Traditional liquid hot water pretreatment (LHWP) has a high water consumption, a high reaction temperature, and low lignin removal, making it unsuitable for industrial applications of biomass conversion. In this study, we developed a new phase-exchange solvent pretreatment (PESP) based on the varied phase composition of furfural (FF)-water at different temperatures. Substitution of water with FF had no significant influence on xylan hydrolysis, but it improved the mass transfer performance. At the optimum conditions of 180 °C, an FF:water ratio of 30:70 (v/v), a solid:liquid ratio of 1:8 (w/v), and 0.2 wt % sulfuric acid for 30 min, the PESP of energy sorghum achieved a 74.98% total xylose yield and removed 85.08% of the lignin, while there was a selective distribution of sugar and lignin in the aqueous and organic phases, respectively. Moreover, 99.58% of the cellulase enzyme digestibility and 94.02% of the total sugar recovery were achieved after 72 h. This unusually high enzymatic digestibility could be attributed to the physicochemical changes in the substrate after the pretreatment. When compared with a traditional LHWP (5% solid loading), the water consumption decreased by approximately 72% and the lignin removal increased by 60.74%. These results demonstrate that PESP is a promising technology for biorefining lignocellulosic biomass with high efficiency and low energy consumption.
研究领域:
生物工程
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可再生能源
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产品关联
DOI
高影响因子
INDUSTRIAL CROPS AND PRODUCTS
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2015
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IF 2.837
Huanfei Xu,Guang Yu,Xindong Mu,Chunyan Zhang,Paul DeRoussel,Chao Liu,Bin Li,Haisong Wang
A modified alkali pretreatment (MAP) process was established in both lab-scale and pilot-scale, based on the on-line production and utilization of lignosulfonate for improving enzymatic saccharification of corn stover. Sodium lignosulfonate (SLS) produced by directly sulfonating lignin in spent liquor separated from alkali pretreatment was reused in the next cycle of alkali pretreatment. The results showed that, by using 11 wt% NaOH, 2 wt% SLS and 0.1 wt% anthraquinone (AQ) in MAP, delignification rate and final total sugar yields could reach about 78% and 80% respectively, which were about 6% and 9% higher compared to the blank conventional NaOH pretreatment under the same conditions. In addition, sulfonation degree of SLS had linearly impact on the final total sugar yields.
研究领域:
生物化工
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生物技术
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可再生能源
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产品关联
DOI
高影响因子
Plant Stress
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2025
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IF 6.9
Caixia Sun,Liping Chen,Yuhong Liu,Weiran Zheng,Yumei Hua,Qiaoyan Zhang
The increasing demand for high quality fertilizer, which is being driven by human nutrition demand and agricultural soil protection, necessitates sustainable alternatives to be used as vegetable production. Thus, utilizing biochar (BC), bacterial fertilizer and their combination with organic fertilizer (OF) could be a sustainable approach. In our research work, OF, BC, liquid bacterial fertilizer (LB), and solid bacterial fertilizer (SB) were used to investigate different fertilizer combinations. Greenhouse field experiment was conducted to compare different fertilizer application and their effects on cabbage biomass, cabbage characteristics and soil physical and chemical properties. The results showed that combined application OF, BC, and LB promoted cabbage growth and resulted in the highest yield of 16.6 kg/m 2 . The vitamin C content was highest at 48.4 mg/kg with the combined application OF, BC, and SB treatment. The combined application OF, BC, and SB achieved the best overall comprehensive evaluation for cabbage biomass weight, vitamin C content, and total sugar content. The combined application OF and a bacterial fertilizer improved soil properties, while the addition of BC reduced the soil nutrient content. Gas chromatography-ion mobility spectrometry (GC-IMS) analysis showed that volatile organic compounds from cabbages were mainly esters, alcohols, acids, acetates, aldehydes, and ketones. These results provide a comprehensive understanding of different fertilizer applications and their effects on cabbage quality and rhizosphere soil.
研究领域:
农业科学
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土壤学
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植物营养
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微生物学
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分析化学
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DOI
高影响因子
FOOD CHEMISTRY
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2024
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IF 8.5
Yao Li,Jingyi Han,Otu Phyllis Naa Yarley,Yujin Wang,Yang Wang,Ao Zhang,Xingyu Fan,Cunshan Zhou,Weiqiao Lv
Dried shiitake mushrooms offer rich nutritional value and unique sensory properties, prompting further investigation. The effects of different drying techniques (hot air drying (HAD), infrared hot air drying (IRHAD), pulsed vacuum drying (PVD), vacuum freeze drying (VFD), and natural drying (ND)) combined with enzymatic hydrolysis on the release of flavor compounds and nutrients from shiitake mushrooms were explored. The combination of HAD with cellulase hydrolysis yielded notably high levels of umami amino acids (5.4723 ± 0.1501 mg/g) and 5′-nucleotides (4.0536 ± 0.0062 mg/g), and superior volatile flavors. Combined with cellulase hydrolysis, IRHAD achieved the highest level of total sugars (6.57 ± 0.34 mg/mL), VFD resulted in the greatest soluble protein content (153.21 ± 0.23 μg/mL), PVD yielded the highest total phenolics content (93.20 ± 0.41 μg GAE/mL), and ND produced the maximum reducing sugar content (5.79 ± 0.13 mg/mL). This study addresses crucial gap in the post-drying processing of shiitake mushrooms, offering valuable insights for further product development of shiitake mushrooms.
研究领域:
食品科学
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营养学
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酶学
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产后技术
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产品关联
DOI
PubMed
高影响因子
Journal of Food Measurement and Characterization
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2019
·Vol. 13
·期 4
·2713-2721
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IF 1.415
Yan Jun,Huang Xiao-Ping,Wu Ye-Yu,Du Fang-Kai,Tan Xue-Cai,Wang Qi,Zhu Wei-Wei
Abstract Near-infrared (NIR) diffuse reflectance spectroscopy has become an attractive technique for quality assurance of fruits, drugs, vegetables, and foods. In this work, the information on chemical composition of Siraitia grosvenorii was acquired by NIR, and then a calibration model for the prediction of total sugar content (TSC) was developed using chemometric techniques. One hundred and fifty samples were used as calibration set to develop model, while 40 unknown samples were used for prediction, using phenol-concentrated sulphuric acid assay as reference value. Several spectra preprocessing methods and wavelength selection techniques combined with partial least squares regression were compared, and then standard normal variate coupled with Savitzky–Golay derivative was selected for spectra processing and competitive adaptive reweighted sampling method was applied to extract the informative wavelengths related to the prediction of TSC. The performance of the obtained model has been evaluated by external validation, the square of correlation coefficient (R 2 ) are 0.9097 for a separate blind set consists of 40 unknown samples. Additionally, the result of paired t test ( p = 0.3608) illustrated that there is no significant differences between NIR and wet chemistry analysis. These results demonstrated that NIR spectroscopy has the potential to be a time saving and cost-effective method for the determination of the TSC in S. grosvenorii . Graphic abstract
研究领域:
食品科学
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分析化学
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质量保证
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产品关联
DOI
高影响因子
Innovative Food Science & Emerging Technologies
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2023
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IF 6.6
Wenhui Zou,Huihui Niu,Junjie Yi,Linyan Zhou
This study evaluated the changes of enzymes and quality properties of passion fruit juice juicing with (PFJ-1) and without seeds (PFJ-2) treated by high-pressure processing (HPP, 600 MPa/5 min) and thermal pasteurization (TP, 85 °C /30 s) during storage at 4 °C for 35 days. Juicing with seeds resulted in PFJ-1 with 76.83, 68.25 and 28.12% higher activities of polyphenol oxidase , peroxidase and superoxide dismutase than PFJ-2, respectively, and its apparent viscosity at 10 −1 s and L * were also 148.60 and 1.47% higher, respectively. The total sugars, organic acids, and volatile compounds in PFJ-1 were 9.16, 4.97 and 53.85% higher than PFJ-2, respectively. Quality properties, including sugars, organic acids, volatile compounds in PFJ-1-HPP were all more susceptible towards degradation than PFJ-2-HPP under storage, which were decreased by 21.93, 26.14 and 18.47% after storage. This research provided new insights for production of high-quality passion fruit juice. Industrial relevance At present, the passion fruit juice is the dominated product in passion fruit industry, but there are few studies reported on the difference between the juice quality under different juicing methods by juicing with or without seeds. The seeds in passion fruit contains a great variety of substances such as oxidative browning enzymes, unsaturated fatty acids , which can significantly affect the quality of passion fruit juice after entering in juice. This research is of great significance as a theoretical basis to further research on the influence mechanism of enzyme and phytochemicals in seeds on the quality of passion fruit juice, and also provides a guide to production for quality orientated passion fruit juice based on consumer and producer demands.
研究领域:
食品科学
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食品技术
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酶学
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质量控制
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产品关联
DOI
高影响因子
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
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2019
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IF 4.784
Bilal Muhammad Khan,Hua-Mai Qiu,Xue-Fei Wang,Zhuo-Yan Liu,Jia-Yan Zhang,Yan-Jun Guo,Wei-Zhou Chen,Yang Liu,Kit-Leong Cheong
A complete absence of the physicochemical characterization of Gracilaria chouae polysaccharides (GCP) and its corresponding bioactivities urged the need for this study. It was found that GCP is a heteropolysaccharide which exists in linear random coil conformation. It contained a sulfate content of 7.9% in addition to 52.63% total sugar content and 9.62% galacturonic acid. Galactose and 3,6-anhydrogalactose were found in a molar ratio of 1.0:0.6. Its setting and melting points were determined as 41.3 and 71.7 °C, respectively, which makes it a suitable candidate for industrial processing where further heating is required and/or where the end-product needs to have extended shelf life in hot climate. GCP demonstrated 2,2-diphenyl-1-picrylhydrazyl, 2,2′-azino-bis and hydroxyl radical scavenging activity (36.86, 27.42 and 19.07% at 3 mg·ml −1 ). Moreover, the results also suggested its potential use as a prebiotic due to its perceived high fermentability.
研究领域:
海洋生物学
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药学
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食品科学
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生物化学
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产品关联
DOI
PubMed
高影响因子
Marine Drugs
·
2023
·Vol. 21
·期 5
·260
·
IF 5.4
Zhilin Pan,Baolin Ge,Mingjun Wei,Jeevithan Elango,Wenhui Wu
Numerous studies have shown that type II collagen (CII) has a potential role in the treatment of rheumatoid arthritis. However, most of the current studies have used terrestrial animal cartilage as a source of CII extraction, with fewer studies involving marine organisms. Based on this background, collagen (BSCII) was isolated from blue shark (Prionace glauca) cartilage by pepsin hydrolysis and its biochemical properties including protein pattern, total sugar content, microstructure, amino acid composition, spectral characteristics and thermal stability were further investigated in the present study. The SDS-PAGE results confirmed the typical characteristic of CII, comprising three identical α1chains and its dimeric β chain. BSCII had the fibrous microstructure typical of collagen and an amino acid composition represented by high glycine content. BSCII had the typical UV and FTIR spectral characteristics of collagen. Further analysis revealed that BSCII had a high purity, while its secondary structure comprised 26.98% of β-sheet, 35.60% of β-turn, 37.41% of the random coil and no α-helix. CD spectra showed the triple helical structure of BSCII. The total sugar content, denaturation temperature and melting temperature of BSCII were (4.20 ± 0.03)%, 42 °C and 49 °C, respectively. SEM and AFM images confirmed a fibrillar and porous structure of collagen and denser fibrous bundles formed at higher concentrations. Overall, CII was successfully extracted from blue shark cartilage in the present study, and its molecular structure was intact. Therefore, blue shark cartilage could serve as a potential source for CII extraction with applications in biomedicine.Keywords:type II collagen;blue shark (Prionace glauca) cartilage;microstructure;thermal stability
研究领域:
生物化学
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生物技术
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海洋生物学
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医学
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产品关联
DOI
PubMed
高影响因子
危险品化学品经营许可证（带存储）