SEPARATION AND PURIFICATION TECHNOLOGY
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2025
·
IF 9
Jing Li,Yang Yang,Ni Liang,Xi Wang,Xiong Tong,Bo Pan
In this study, we propose a simple and sustainable strategy to fabricate hierarchical porous graphitic carbon (HPGC) through the direct pyrolysis of banana peduncle, in which the naturally occurring potassium-rich components allow it to act as carbon source, template, and self-activator all in one. During pyrolysis, the formation of KCl and K 2 CO 3 enabled simultaneous carbonization and self-template/self-activation of banana peduncle, eliminating the need for exogenous chemicals. The resulting HPGC exhibited high graphitization, hydrophobicity, and a large specific surface area of 1686.30 m 2 g −1 , with a hierarchical pore structure dominated by micropores (peaking at 0.86 nm) and narrow mesopores (<4.0 nm). HPGC achieved exceptional sorption capacities of 730.63 and 833.44 mg g −1 for dimethyl phthalate and diethyl phthalate, respectively, within 2 h, significantly outperforming most reported sorbents. The superior performance is attributed to the developed pore structure and large surface area, which provided abundant sorption sites through pore-filling and surface coverage. Meanwhile, the hydrophobic π-conjugated carbon framework of HPGC facilitated the sorption via hydrophobic effects, π-π electron donor–acceptor interactions, and π-π stacking. Additionally, hydrogen bonding may be involved, but with minor contribution. Thermodynamic parameters indicated that the sorption process was spontaneous and exothermic, driven primarily by hydrophobic effects, resulting in an entropy gain in systems. The stronger sorption of diethyl phthalate compared with dimethyl phthalate was attributed to stronger hydrophobic interaction with HPGC. This work highlights a novel, cost-efficient, and environmental-friendly approach to synthesizing high-performance porous carbon for phthalate easters removal, offering significant potential for large-scale applications in water remediation.
研究领域:
环境科学
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材料科学
✓ 已验证
产品关联
DOI
高影响因子
Journal of Food Measurement and Characterization
·
2025
·
IF 3.3
Jing Jing,Li Huizhen,Li Cheng,Xu Mengjie,Zhao Yana,Cui Jianlan,Zhang Zhijun
Hemerocallis citrina Baroni ( H. citrina Baroni) is widely used in the food and medical industries. However, a comprehensive evaluation of the physicochemical, rheological properties, and hypoglycemic activities of its various parts has not yet been reported. In this study, we extracted polysaccharides from the leaves (HCLP) and stems (HCSP) of H. citrina Baroni. The physicochemical properties were investigated using high-performance gel permeation chromatography (HPGPC), high performance liquid chromatography (HPLC), Congo red experiment, Fourier transform infrared spectroscopy (FTIR), ultraviolet-visible spectroscopy (UV-Vis), X-ray diffraction (XRD), thermogravimetric (TG), and scanning electron microscopy (SEM). HCSP exhibited higher total sugar contents, uronic acids, protein, total phenol, and flavonoid contents than HCLP. However, the HCSP extraction yield (2.54 ± 0.68%) was lower than that of HCLP (6.34 ± 0.75%). Both polysaccharides were mainly composed of Mannose (Man) and galactose (Gal), but their contents varied significantly; HCSP contained more glucosamine (GlcN), rhamnose (Rha), arabinose (Ara), gluconic acid (GlcA), galacturonic acid (GalA) and glucose (Glc) than HCLP. The results showed that both HCSP and HCLP displayed macromolecular characteristics with a triple-helix structure. The thermal stability was stronger in HCLP than in HCSP. The rheological results showed that HCLP and HCSP exhibited a pseudoplastic fluid behavior. Compared to HCSP, HCLP had a stronger ability to inhibit α -glucosidase and enhance glucose consumption in HepG2 cells, attributed to its superior thermal stability and higher molecular weight ( M w ). These results indicated that polysaccharides from the leaves and stems of H. citrina Baroni have potential as functional foods and hypoglycemic drugs.
研究领域:
植物化学
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食品科学
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药理学
✓ 已验证
产品关联
DOI
高影响因子
INDUSTRIAL CROPS AND PRODUCTS
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2025
·
IF 6.2
Yike Xing,Yulu He,Chao Wang,Lupeng Shao,Guihua Yang
Hemp-derived castor stalk constitutes a promising lignocellulosic resource for biomass refining, attributed to its chemical composition being remarkably similar to that of hardwood. This study introduces a novel cascade fractionation strategy integrating subcritical water hydrolysis (SWH) with hydrated deep eutectic solvents (HDES) treatment, aiming to optimize the fractionation of castor stalk. In the initial step, SWH conducted at 180 °C for 30 min achieved significant xylan removal (76.2 %) and xylo-oligosaccharides (XOS) yield (63.6 %). Under optimal conditions (140 °C, 3 h, choline chloride/ethanolamine with 40 % water), the HDES treatment resulted in a delignification efficiency of 60.5 %. The resultant cellulose-rich pulp was efficiently converted into glucose with an enzymatic saccharification yield of 93.4 %. Notably, this cascade fractionation process enabled the recovery of uncondensed lignin at a yield of 57.3 %, while preserving up to 80 % of β-O-4 bonds. Furthermore, the lignin fractions could be readily assembled into lignin nanoparticles via an in-situ solvent exchange approach. The efficient cascade fractionation, which integrates SWH and HDES treatments, effectively decomposes and utilizes biomass. This combines approach enhances economic viability and environmental sustainability by maximizing the yield of valuable products and minimizing waste.
研究领域:
生物质工程
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环境科学
✓ 已验证
DOI
高影响因子
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
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2024
·Vol. 25
·期 16
·8827
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IF 4.9
Chen Shen,Shan Yu,Xinyang Tan,Guanghua Luo,Zhengping Yu,Jiafei Ju,Lei Yang,Yuxuan Huang,Shuai Li,Rui Ji,Chunqing Zhao,Jichao Fang
Plants regulate the biosynthesis and emission of metabolic compounds to manage herbivorous stresses. In this study, as a destructive pest, the pre-infestation of rice striped stem borer (SSB,Chilo suppressalis) larvae on rice (Oryza sativa) reduced the subsequent SSB female adult oviposition preference. Widely targeted volatilomics and transcriptome sequencing were used to identify released volatile metabolic profiles and differentially expressed genes in SSB-infested and uninfested rice plants. SSB infestation significantly altered the accumulation of 71 volatile organic compounds (VOCs), including 13 terpenoids. A total of 7897 significantly differentially expressed genes were identified, and genes involved in the terpenoid and phenylpropanoid metabolic pathways were highly enriched. Correlation analysis revealed that DEGs in terpenoid metabolism-related pathways were likely involved in the regulation of VOC biosynthesis in SSB-infested rice plants. Furthermore, two terpenoids, (−)-carvone and cedrol, were selected to analyse the behaviour of SSB and predators. Y-tube olfactometer tests demonstrated that both (−)-carvone and cedrol could repel SSB adults at higher concentrations; (−)-carvone could simultaneously attract the natural enemies of SSB,Cotesia chilonisandTrichogramma japonicum, and cedrol could only attractT. japonicumat lower concentrations. These findings provide a better understanding of the response of rice plants to SSB and contribute to the development of new strategies to control herbivorous pests.
研究领域:
植物学
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昆虫学
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分子生物学
✓ 已验证
DOI
PubMed
高影响因子
CARBOHYDRATE POLYMERS
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2015
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IF 4.074
Suling Sun,Ganwei Zhang,Chaoyang Ma
Acetylated lotus rhizome starches were prepared, physicochemically characterized and used as food additives in puddings. The percentage content of the acetyl groups and degree of substitution increased linearly with the amount of acetic anhydride used. The introduction of acetyl groups was confirmed via Fourier transform infrared (FT-IR) spectroscopy. The values of the pasting parameters were lower for acetylated starch than for native starch. Acetylation was found to increase the light transmittance (%), the freeze–thaw stability, the swelling power and the solubility of the starch. Sensorial scores for puddings prepared using native and acetylated lotus rhizome starches as food additives indicated that puddings produced from the modified starches with superior properties over those prepared from native starch.
研究领域:
食品科学
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化学
✓ 已验证
DOI
高影响因子
FOOD AND BIOPRODUCTS PROCESSING
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2024
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IF 3.5
Xiaolan Shang,Haoning Wang,Xingyi Wang,Yulin Wang,Moyun Lv
Waste Lentinula edodes ( L . edodes ) stipes from L . edodes were utilized as raw materials to obtain dietary fibers through a purification process. Following a 24-h cellulase hydrolysis, dietary fibers were subjected to cell disruption with varying durations. Differences in the monosaccharides composition, microscopic structure, size, zeta potential, contact angle, crystallinity, and functional groups of the nano dietary fiber produced through combined cellulase hydrolysis and cell disruption were analyzed in comparison to those obtained through cell disruption alone. Results indicated that the spacing between the nano dietary fibers was increased, and their particle size was reduced by cellulase hydrolysis followed by cell disruption. The wettability of the nano dietary fiber was enhanced by enzymatic treatment, whereas it was reduced by cell disruption. Either treatment did not compromise the crystalline regions of the nano dietary fiber; rather, the crystallinity was increased. Additionally, to emulsify corn germ oil, the prepared nano dietary fiber was employed, resulting in Pickering emulsion formation. A 45-min optimal cell disruption duration produced emulsions with a more uniform dispersion and the smallest particle size. Improved oil droplet encapsulation was exhibited by the emulsions prepared from dietary fiber that underwent cellulase hydrolysis followed by cell disruption, thereby leading to a decrease in free fatty acid release. The stability mechanism of the EEU 24–30 emulsion was attributed not only to the adsorption of the nano dietary fiber onto the oil droplets but also to the formation of a three-dimensional network structure that further enhanced the emulsion stability.
研究领域:
食品科学
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生物技术
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材料科学
✓ 已验证
DOI
高影响因子
Journal of Zhejiang University-SCIENCE B
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2016
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IF 1.303
Yun Wu,Yi-ping Xia,Jia-ping Zhang,Fang Du,Lin Zhang,Yi-di Ma,Hong Zhou
Bulblet development is a problem in global lily bulb production and carbohydrate metabolism is a crucial factor. Micropropagation acts as an efficient substitute for faster propagation and can provide a controllable condition to explore bulb growth. The present study was conducted to investigate the effects of humic acid (HA) on bulblet swelling and the carbohydrate metabolic pathway in Lilium Oriental Hybrids ‘Sorbonne’ under in vitro conditions. HA greatly promoted bulblet growth at 0.2, 2.0, and 20.0 mg/L, and pronounced increases in bulblet sucrose, total soluble sugar, and starch content were observed for higher HA concentrations (≥2.0 mg/L) within 45 d after transplanting (DAT). The activities of three major starch synthetic enzymes (including adenosine 5'-diphosphate glucose pyrophosphorylase, granule-bound starch synthase, and soluble starch synthase) were enhanced dramatically after HA application especially low concentration HA (LHA), indicating a quick response of starch metabolism. However, higher doses of HA also caused excessive aboveground biomass accumulation and inhibited root growth. Accordingly, an earlier carbon starvation emerged by observing evident starch degradation. Relative bulblet weight gradually decreased with increased HA doses and thereby broke the balance between the source and sink. A low HA concentration at 0.2 mg/L performed best in both root and bulblet growth. The number of roots and root length peaked at 14.5 and 5.75 cm, respectively. The fresh bulblet weight and diameter reached 468 mg (2.9 times that under the control treatment) and 11.68 mm, respectively. Further, sucrose/starch utilization and conversion were accelerated and carbon famine was delayed as a result with an average relative bulblet weight of 80.09%. To our knowledge, this is the first HA application and mechanism research into starch metabolism in both in vitro and in vivo condition in bulbous crops.
研究领域:
植物学
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园艺学
✓ 已验证
DOI
PubMed
高影响因子
Journal of Physical Chemistry C
·
2023
·
IF 3.7
Shuya Wang,Zurui Qiu,Lulu Li,Hong Zheng,Jingru Wang,Jiankun Zhang,Minghao Wang,Zhenzhen Tan,Quanchao Zhuang
Waste management is essential to achieve sustainable development and protect the environment. Herein, a strategy was tested to utilize large volumes of lotus petiole waste. In this work, a composite supercapacitor electrode of lotus petiole with a porous structure and MoO2 with an ice flower structure was fabricated via an in situ hydrothermal growth method. The prepared PC-50 lotus petiole–porous carbon material exhibited a unique hierarchical porous structure and a high specific surface area (1887 m2 g–1). The composite electrode exhibits high reversible capacity (515.10 mAh g–1 at 2 A g–1) in the three-electrode system. The maximum gravimetric energy density reached 30.10 W h kg–1 at a power density of 387 W kg–1, and a favorable energy density of 20.19 W h kg–1 was retained even at a high power density of 3.69 kW kg–1 in the symmetric device. Moreover, the symmetric device shows superior cycling stability (91.60% capacity retention in 2000 cycles). Electrochemical impedance spectroscopy was used to study the electrochemical interface characteristics and verify the electrochemical performance of the composite electrodes. The research results provide guidance for the design of high-performance metal oxide–biomass carbon composites and the comprehensive utilization of waste biomass.
研究领域:
能源存储材料
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环境科学
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生物质利用
✓ 已验证
产品关联
DOI
高影响因子
INTERNATIONAL JOURNAL OF FOOD PROPERTIES
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2016
·
IF 1.586
Xuelan Zhou,Min Zhou,Yan Liu,Qi Ye,Jian Gu,Guoyong Luo
The antioxidant compounds in the stems and leaves of Gynura bicolor were studied. 1,1-diphenyl-2-picrylhydrazyl and 2,2′-azinobis(3-ethylbenzothiazoline-6-sulfonic acid) radical scavenging assays were employed to evaluate antioxidant capacity. By solvent extraction and Sephadex LH-20 column chromatography in sequence, ethanol extracts of Gynura bicolor stems and leaves were fractionated to obtain their active fractions, which were further separated to obtain 12 compounds: 1–8 from stems, and four, 8–12, from leaves. Their structures were elucidated on the basis of spectroscopic data (nuclear magnetic resonance and mass spectrometry). Among these substances, compounds 1, 2, 3, 4, and 8 with significant antioxidant activity were determined to be responsible active components for stems, and compounds 4, 8, and 12 for leaves.
研究领域:
植物化学
·
药理学
✓ 已验证
产品关联
DOI
高影响因子
FOOD CHEMISTRY
·
2020
·
IF 6.306
Yishun Yao,Xunjiao Wei,Huiyun Pang,Ke Wang,Qiang Liu,Hongfei Fu,Xiangwei Chen,Yunyang Wang
This paper investigated the effects of radio-frequency (RF) energy and conventional hot-water blanching (95 °C for 2 min) on the peroxidase (POD) activity, physiochemical properties, and changes in the cellular morphology of stem lettuce. The relative residual POD activity significantly decreased ( P < 0.05) from 66.03% to 6.46% with increased RF heating temperature (65 °C–85 °C). The weight loss (3.06%–7.64%), color, texture, relative electrolyte leakage (23.45%–67.90%), and residual vitamin C content (72.22%–16.67%) significantly changed ( P < 0.05) with increased RF heating temperature (65 °C–85 °C). Micrographs indicated that the changes in physiochemical property can be attributed to the destruction of cell membranes, loss of cell turgor, reduced rigidity of cell walls, and loose adhesion between adjacent cells. Samples treated by RF heating at 75 °C showed lesser cell damage and better nutrient retention than those treated by hot-water blanching at a similar level of POD inactivation.
研究领域:
食品科学
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植物生理学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
International Journal of Electrochemical Science
·
2023
·
IF 1.5
Kanjun Sun,Qian Yang,Yanping Zheng,Guohu Zhao,Yanrong Zhu,Xiaoping Zheng,Guofu Ma
In this study, sunflower marrow is used as raw material to prepare porous carbon via a simple carbonization method activated by ZnCl 2 and FeCl 3 mixture. The as-prepared porous sunflower marrow carbons (PSMCs) show large number of mesoporous and masoporous, maximum specific surface area of 1628.5 m 2 g -1 and large pore volume of 2.34 cm 3 g -1 . As an electrode material for supercapacitor, the PSMCs possess high specific capacitance of 252.5 F g -1 at 0.5 A g -1 . A symmetric supercapacitor used PSMCs as electrodes exhibits energies density of 12.4 Wh kg -1 at a power density of 817 W kg -1 operated in the voltage range of 0-2.0 V in 0.5 mol L -1 Na 2 SO 4 aqueous electrolyte. Also, the carbon material shows excellent cycleability retains about 97% initial capacitance after 5000 cycles.
研究领域:
材料科学
·
能源存储
·
环境科学
✓ 已验证
产品关联
DOI
高影响因子
SENSORS AND ACTUATORS B-CHEMICAL
·
2023
·
IF 8.4
Wanjun Long,Yuting Guan,Guanghua Lei,Zikang Hu,Hengye Chen,Yuanbin She,Haiyan Fu
In this work, we constructed a machine learning-assisted dual-channel visual sensor array for identifying the origin of Lilium bulbs (BH). Nanogold clusters (AuNCs) and quantum dots (QDs) were selected and combined into sensor arrays. The amino acids existed in lilium bulbs could induce aggregation-induced fluorescence enhancement effect (AIEE) of AuNCs through hydrogen bonding . The hydrogen protons released from the amino acids and phenolic acids could interact with the COO - group of QDs, resulting in aggregation-caused quenching (ACQ) of QDs. Due to the different contents of amino acids and phenolic acids in BH from different origins, the sensor array can produce distinct and different fluorescent colors , such as red, blue, green and purple. In conjunction with pattern recognition by the RF model, the sensor array clearly identifies the origin of BH with 94.4% prediction accuracy. The visual sensor array constructed in this work exhibited the advantages of simplicity, speed, accuracy and portability, showing potential application prospects in identifying the origin of food and traditional Chinese medicine.
研究领域:
植物学
·
食品科学
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中药学
·
分析化学
✓ 已验证
产品关联
DOI
高影响因子
危险品化学品经营许可证（带存储）