ANALYTICAL LETTERS
·
2025
·
IF 1.8
Wanying Zhao,Yanqin Chen,Jun Tan,Yanru Bai,Fudong Ma
A method utilizing high-performance liquid chromatography with evaporative light scattering detection (HPLC-ELSD) has been developed and validated for the simultaneous determination of raffinose, glucose, sucrose, and stachyose in waste liquid from cottonseed processing and in byproducts including cottonseed meal. The separation was performed using a carbohydrate ES column (250 × 4.6 mm, 5 μm) and isocratic elution with acetonitrile and water (70:30, v/v). The temperature of the column oven was maintained at 35 °C. The drift tube temperature for evaporative light scattering detection (ELSD) was operated 40 °C, while the nitrogen flow was set to 1.5 L·min−1. The saccharides were separated by HPLC-ELSD within 20 min. The coefficients of determination (R2 = 0.9986–0.9999) indicate that there was a linear relationship between saccharides and the response. The limits of detection were 0.004–0.023 mg·mL−1 and the quantification range was from 0.013 to 0.080 mg·mL−1. The intraday and interday precision were from 0.05 to 0.55% and 0.20 to 0.58%, respectively. The recovery was from 102.75 ± 2.03% to 106.76 ± 2.09% and the relative standard deviations were 1.87 to 1.98%. The method exhibited good stability in determining four saccharides in cottonseed processing waste liquid and the resultant byproduct cottonseed meal. This method exhibits high separation efficiency and sensitivity, excellent precision, and simplicity, which allows determination of the high value-added product, raffinose, in cottonseed processing waste liquid and meal.
研究领域:
食品科学
·
分析化学
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产品关联
DOI
高影响因子
ENERGY
·
2014
·
IF 4.159
Qing-li Zhu,Rong Shao,Rui Dong,Zhi Yun
This study outlined an integrated approach for obtaining several products, such as biodiesel , gossypol, sterols, raffinose, and nontoxic cottonseed meal from cottonseed via modified two-phase extraction (TPE), supercritical methanol transesterification and other technologies. The modified TPE could not only simplify the steps of separating substances, but also improve the quality of cottonseed oil and cottonseed meal. The suitable conditions of modified TPE were as follows: the petroleum ether/methanol volume rate of 1:3, the extraction temperature of 40 °C, and the extraction time of 20 min. The supercritical methanol transesterification had a favorable yield of biodiesel with shorter time. The conversion of cottonseed oil was up to 97.5% with the temperature of 270 °C, the molar ratio of methanol to oil of 40, and a reaction time of 40 min at 10 MPa. Meanwhile, with the suitable conditions, the purity of the obtained gossypol, sterols and raffinose could be got to 92.1%, 89.8% and 94.2%, respectively. This integrated biorefinery could be useful for comprehensive development and utilization of cottonseed with fewer steps and lower cost.
研究领域:
生物工程
·
化学工程
✓ 已验证
产品关联
DOI
高影响因子
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
·
2025
·
IF 8.5
Wenju Zhu,Shuang Xu,Dongxiang Li,Shuixia Liu,Wei Peng,Shuolong Wang,Jiarui Liu,Kai Ma,Xiaoqing Wang,Bowen Cheng
Cotton fibers are widely used in various applications due to their biodegradability, low cost, and extensive availability. The cottonseed is associated with cotton, which has a large yield. After oil extraction, the remaining cottonseed meal has a high protein content, making it a potential flame retardant for cotton fibers. This paper proposes the concept of homologous flame retardant for cotton fiber, and presents research on Cottonseed Meal Modified Flame Retardant - Homologous Durable Flame Retardant Cotton Fiber. The experiment results showed that the flame retardants CmP prepared by phosphating cottonseed meal is an effective flame retardant for cotton fiber. Both CmP1 and CmPN demonstrated self-catalytic durable grafting on the surface of Cotton fiber. Notably, the durable flame retardant CmP1-cotton and CmPN-cotton prepared by DICY catalysis exhibit superior durability and flame retardant properties, with damage lengths of 53 mm and 86 mm, respectively, and the LOI value is more than 35 %. FT-IR, XPS, and SEM results confirmed that the flame retardant was durably grafted onto the fiber surface and the superficial layer. XPS and SEM results of flame retardant cotton and char residues of TG and CCT are displayed that the two kinds of flame retardant cotton fabrics are mainly condensed phase flame retardant mechanisms, with a synergistic gas-phase effect.
研究领域:
材料科学
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纺织工程
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产品关联
DOI
PubMed
高影响因子
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
·
2025
·
IF 8.5
Wenju Zhu,Shuixia Liu,Huili Zhang,Dongxiang Li,Xiaohan Zhang,Wei Peng,Shuolong Wang,Shuang Xu,Chunming Zheng,Bowen Cheng
The durability and flame retardancy of cotton fabrics have been the focus of long-term research. In this paper, a method for preparing flame retardants through the direct modification of biomass was proposed, and the durable flame retardant of homologous cottonseed meal modified biomass flame retardants for cotton fabrics was achieved through biomass composition analysis and modeling. In this study, a cottonseed meal-phosphoric acid-boric acid synergistic bio-based flame retardant (CPB) was synthesized and characterized. The results of XPS and scanning electron microscope (SEM) showed that DC-CPB1 was mainly grafted on the superficial layer and surface of the fabric, and DC-CPB2 was mainly grafted on the surface of cotton fiber. In the vertical flammability test (VFT) and limiting oxygen index test (LOI), the LOI value of cotton fabric after 50 cycles of washing can reach up to 33.5 %, and the carbon damage length was reduced from 300 mm to a minimum of 69 mm, showing excellent flame-retardant performance and self-extinguishing ability. In the cone calorimetry test, the peak heat release rate (PHRR) was significantly reduced by 82.49 %, and the results of thermogravimetric (TG) analysis and thermogravimetry-infrared-mass (TG-IR-MS) test showed that CPB1 mainly had a gas phase. In contrast, CPB2 mainly had a condensed phase flame retardant mechanism. The mechanical properties of the cotton fabric remain good after treatment.
研究领域:
材料科学
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纺织工程
✓ 已验证
产品关联
DOI
PubMed
高影响因子
SEPARATION SCIENCE AND TECHNOLOGY
·
2016
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IF 1.083
Zongbi Bao,Shuran Duan,Zhiguo Zhang,Huabin Xing,Baogen Su,Qiwei Yang,Yiwen Yang,Qilong Ren
Separation of oligosaccharides with a varied number of monosaccharides is an important issue in food chemistry. Raffinose, a functional oligosaccharide, has attracted increasing attentions due to its strong proliferative effect on bacteria. Industrially, cottonseed meal is an important resource for producing raffinose; however, raffinose extracted from the cottonseed meal contains a significant amount of sucrose that debases raffinose’s quality. In this work, an adsorptive separation of raffinose and sucrose on activated carbon was reported. Adsorption isotherms, adsorption kinetics and dynamic column adsorption–desorption were investigated. The activated carbon chosen has a significantly higher adsorption capacity of raffinose (0.60~0.65 g/g) than sucrose (0.35~0.40 g/g) at the equilibrium concentration studied (~35 g/L) and temperature from 293 K to 333 K. Adsorption isotherms and kinetics were fitted by the Freundlich isotherm model and the pseudo-second-order model, respectively. The effect of flow-rate and initial feed concentration on dynamic adsorption were investigated; meanwhile, the separation performance was further confirmed from dynamic desorption using aqueous ethanol of 20% as eluant. Remarkably, raffinose with purity over 90% and recovery of 79.2% could be obtained by the adsorption–desorption cycle using an aqueous feed solution containing 20 g/L of raffinose and 6 g/L of sucrose.
研究领域:
食品化学
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工业分离技术
✓ 已验证
产品关联
DOI
高影响因子
FUEL
·
2023
·
IF 7.4
Tao Wang,Lina Peng,Bowen Deng,Fang Yuan,Jia Guo,Qian Liu,Dongling Wu
Enzyme, as a type of biocatalyst, has a superior degradability on the biomass component. Herein, the cellulase degradation of cottonseed meal (CCM) is used as carbon source and potassium citrate as activating agent to fabricate O, S, N co-doped carbon materials. Cellulase pretreatment degrades the cellulose (from 12.48 wt% to 2.24 wt%) of cottonseed meal (CM) as well as creates the pore structure. Most importantly, the enzymolytic process can enhance the O content and improve the activation efficiency of potassium citrate. The optimized CCM-800-2 with hierarchical porous structure and high O (11.33 at%) content exhibits a high specific capacitance of 364 F g -1 in 6 M KOH electrolyte. In addition, the assembled potassium citrate-chitosan gel electrolyte-based symmetric supercapacitor with 20 mg cm -2 mass loading of active material shows a high energy density of 28.8 Wh kg -1 . This study provides an efficient enzyme assisted pretreatment and low activator ratio strategy to prepare biomass-based porous carbon, and expects to fabricate more carbon materials using other carbon precursors.
研究领域:
材料科学
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生物化学
✓ 已验证
产品关联
DOI
高影响因子
BMC PLANT BIOLOGY
·
2022
·Vol. 22
·期 1
·1-15
·
IF 5.26
Wang Haitang,Zhou Xuesong,Liu Chuchu,Li Weixi,Guo Wangzhen
Background In eudicots, germination begins with water uptake by the quiescent dry seed and is greatly related to the permeability of micropyle enriched callose layers. Once imbibition starts, seeds undergo a cascade of physiological, biochemical, and molecular events to initiate cellular activities. However, the effects of callose on water uptake and following seed metabolic events during germination are largely unknown. Cotton ( Gossypium hirsutum ) is a eudicot plant with natural fiber and edible oil production for humans. Here, we addressed this question by examining the role of GhGLU19 , a gene encoding β-1,3-glucanase, in cotton seed germination. Results GhGLU19 belongs to subfamily B and was expressed predominately in imbibed seeds and early seedlings. Compared to wild type, GhGLU19 -suppressing and GhGLU19 -overexpressing transgenic cotton lines showed the higher and lower seed germination percentage, respectively. Callose was enriched more at inner integument (ii) than that in embryo and seed coat in cotton seeds. In GhGLU19 -suppressing lines, callose at ii of cotton seeds was greatly increased and brought about a prolonged water uptake process during imbibition. Both proteomic and transcriptomic analysis revealed that contrary to GhGLU19 -overexpressing lines, the glycolysis and pyruvate metabolism was decreased, and abscisic acid (ABA) biosynthesis related genes were downregulated in imbibed seeds of GhGLU19 -suppressing lines. Also, endogenous ABA was significantly decreased in GhGLU19 -suppressing line while increased in GhGLU19 -overexpressing line. Conclusions Our results demonstrate that suppression of GhGLU19 improves cotton seed germination via accumulating callose of inner integument, modulating glycolysis and pyruvate metabolism, and decreasing ABA biosynthesis. This study provides a potential way for improving germination percentage in cotton seed production, and other eudicot crops.
研究领域:
植物学
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遗传学
·
分子生物学
✓ 已验证
DOI
PubMed
高影响因子
Polymers
·
2019
·Vol. 11
·期 12
·2096
·
IF 3.164
Wenjie Chen,Jiao Ding,Xuming Yan,Wei Yan,Ming He,Guoqiang Yin
The use of waste plant protein obtained from underutilized and non-food-producing plants may be a promising strategy in the development of bioactive packaging. A series of blend films were prepared by casting from cottonseed protein (CP) and poly(vinyl alcohol) (PVA) and modified with different plasticizers. The morphology, structure, and crystallinity of each of the blend films were characterized by scanning electron microscopy, Fourier transform infrared spectroscopy, and X-ray diffraction. CP and PVA were found to be compatible in the appropriate ratios, and the CP/PVA blend films were partially crystalline. We compared the effects that four plasticizers, i.e., glycerol, triethanolamine (TEA), ethylene glycol, and polyethylene glycol, had on the performance of the CP/PVA blend films. Plasticizers altered the degree of interaction between CP and PVA, which changed the secondary structure of the CP but had little effect on the crystallinity of CP/PVA blend films. Among the different plasticizers tested, TEA was the most efficient at improving the elongation at the break, tensile strength, and oxygen barrier properties of the CP/PVA blend films. Such CP/PVA blend films plasticized using TEA can, therefore, be considered emerging and promising plastics for potential applications in food packaging and flower planting applications.Keywords:cottonseed protein;poly (vinyl alcohol);plasticizer;blend films;triethanolamine
研究领域:
材料科学
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生物技术
·
包装工程
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产品关联
DOI
PubMed
高影响因子
COMPOSITES SCIENCE AND TECHNOLOGY
·
2022
·
IF 9.879
Liangjun Li,Hangbo Yue,Qiqi Wu,Juan P. Fernández-Blázquez,Peter S. Shuttleworth,James H. Clark,Jianwei Guo
Cottonseed protein (CP) was compounded with polycaprolactone (PCL) in different concentrations by melt blending , and then hot-pressed to prepare CP/PCL blend films. A co-continuous phase is formed when the CP/PCL content is 50/50, and the tensile strength , modulus and toughness are 9, 10, and 63 times greater than that of neat CP film . This remarkable improvement is mainly due to the intrinsic flexibility of long PCL polymer chains, whilst the polymeric crystalline structure can still be formed. Furthermore, 1 wt% of compatibilizing agent — glycidyl methacrylate (GMA) or maleic anhydride (MA), is added to the blends. Measurements from scanning electron microscopy (SEM), X-ray photoelectron spectroscopy (XPS) and Fourier transform infrared spectroscopy (FTIR) showed the presence of chemically reactive compatibilization between the compatibilizer and CP or PCL phase, and the two phases with strong binding forces are well dispersed. Meanwhile, the compatibilizer can induce the protein secondary structure to unfold, further increasing the physical compatibilization between the protein and polymer chains, which has a noticeable contribution to the blend's mechanical, hydrophobic properties and thermal stability. This work adds new element to the knowledge of compatibilization in terms of optimised interfaces of polymer blends , and provide new insights into fabricating high performance protein derived bioplastics and biocomposites .
研究领域:
材料科学
·
生物材料
✓ 已验证
DOI
高影响因子
JOURNAL OF HAZARDOUS MATERIALS
·
2021
·
IF 10.588
Tiantian Xu,Jiangkun Du,Jian Zhang,Werner David,Peng Liu,Muhammed Faheem,Xiaowei Zhu,Jiawei Yang,Jianguo Bao
This study provided a novel pathway to develop activated carbon with enhanced adsorption performance via feedstock pretreatment by fungi. The growth of Pleurotus ostreatus on cottonseed husks offered this feedstock an advantageous pore size for porous carbon making. The prepared activated carbons derived from cottonseed husks (CSH-ACs) during different fungal growth periods exhibited extraordinary performance than commercial activated carbon for sulfanilamide adsorptive removal. Their experimental data of adsorption capacities for sulfanilamide were 139.43, 146.15, and 146.16 mg g −1 , respectively. The adsorption behaviors of sulfanilamide on CSH-ACs were evaluated by kinetic, isotherm and thermodynamic models. Pore filling, hydrogen-bond forming and π-π staking interactions all contributed to the rapid sulfanilamide removal. The microporous-mesoporous structure, stronger hydrophilicity, and richer functional groups moieties owing to the lignocellulose decomposition in the plant wall significantly strengthened the adsorption process on the microbial-mediated activated carbon. The effects of pH and water impurities (H 2 PO 4 - , CO 3 2- , SO 4 2- , Cl - , and humic acid) on sulfanilamide removal were investigated by a single factor experimental design. Results indicated that CSH-ACs were suitable for sulfanilamide removal in actual wastewater treatment with wide pH adaptability and resilience to interference.
研究领域:
环境科学
·
微生物学
✓ 已验证
DOI
PubMed
高影响因子
JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2022
·
IF 9.965
Chunzhen Fan,Suqing Wu,Xiangyong Zheng,Ke Bei,Shengbing He,Min Zhao
This study is the first to apply a zero-valent iron (ZVI) system in the treatment of cottonseed oil (CTO) refining wastewater. The results indicated that the ZVI system can effectively degrade and mineralize CTO in the wastewater, whereas sunlight irradiation and O 2 bubbling can considerably enhance CTO degradation, removing 93.5% of CTO and 69.0% of chemical oxygen demand within 180 min. In addition, a low concentration (0.1 mM) of S O 4 2 - and Cl − in the wastewater improved CTO degradation, whereas a high concentration (>1 mM) of these anions considerably inhibited the degradation process. However, N O 3 - at all concentrations hindered CTO degradation. Furthermore, OH and O 2 - were the main active species for CTO degradation in the ZVI system under dark conditions. However, in addition to these two species, photogenerated hole (h + ) played a key role in CTO degradation under sunlight irradiation. This observation might be derived from the photocatalytic effect due to photoexcitation of the iron corrosion product, γ-FeOOH. Our findings show that the ZVI system assisted by sunlight irradiation and O 2 bubbling is feasible for CTO-refining wastewater treatment and can guide the real wastewater treatment project.
研究领域:
环境科学
·
污水处理
✓ 已验证
DOI
PubMed
高影响因子
FOOD CHEMISTRY
·
2025
·
IF 9.8
Tian Wang,Dehai Yu,Jian Wang,Bo Yang,Lei Ma,Shuangjiao Xu
The growing demand for sustainable proteins has highlighted cottonseed meal (CSM) as a promising high-protein byproduct. Addressing the challenge of valorizing the annual global production of over 10 million tons of CSM in cottonseed processing, this study investigated the use of choline chloride-ethylene glycol deep eutectic solvent (DES-4) for efficient protein extraction from CSM while reducing toxic gossypol content. Through Box-Behnken response surface optimization, we established optimal conditions (56 °C/3 h/40% water) that achieved 86.85% protein yield while remarkably reducing bound gossypol content from 10.24 mg/g to 2.76 mg/g. Molecular dynamics simulations (MDS) revealed that DES-4 enhance protein recovery and gossypol separation through synergistic mechanisms involving stabilizing solubility, relaxing matrix structure, and disrupting complexes. The obtained protein (CSMP-E) demonstrated superior solubility, emulsifying properties, and antioxidant activity compared to alkali-extracted counterparts. Furthermore, hydrolyzed DES-extracted protein (CSMP-EH) exhibited enhanced DPP-IV inhibitory activity (IC 50 = 1.949 mg/mL), suggesting its potential for type 2 diabetes management.
研究领域:
食品科学
·
生物化学
·
可持续农业
✓ 已验证
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）