Food Chemistry-X
·
2025
·
IF 8.2
Xin Ning,Chengrong Wen,Shimin Chen,Lina Chen,Xiaohui Huang,Lei Wang
The effects of defatting and dephenolization treatments on the structural, physico-chemical and technological properties of passion fruit epicarp flour (PFEF) were evaluated in this research. The FT-IR, SEM and XRD results illustrated that defatted and defree phenolics did not change the basic chemical structure of PFEF, while debound phenolics treatment hydrolyzed the ester bonds between dietary fiber and polyphenols and hydrolyzed the amorphous region of dietary fiber, resulting in self-assembly into a larger aggregate with a compact texture. All three kinds of treatment could improve the flowability of passion fruit epicarp flour to some extent. In addition, dephenolization treatment brought about an obvious change in the technological properties of PFEF, and removal of free polyphenols or bound polyphenols contributed to two completely different effects on partial indicators. These properties may be important for their value-added utilization.
研究领域:
食品科学
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植物化学
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DOI
PubMed
高影响因子
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
·
2021
·Vol. 28
·期 42
·59665-59672
·
IF 4.223
Zhang Ning,Liao Yihong,Xie Lianjie,Zhang Zhixiang,Hu Wei
The red imported fire ant is one of the world’s most devastating invasive species, adversely affecting humans, wildlife, crops, and livestock. To control infestations, chemical pesticides are deployed extensively around the world. However, their extensive use has led to negative effects on the environment and human health. Essential oils, which are safe and ecofriendly, can potentially be used as alternatives to chemical pesticides. In this study, grapefruit essential oils were used as fumigant agents to control red imported fire ants. The crude grapefruit oil (GO1) contained 28 compounds, and the concentrated grapefruit oil (GO2), which was refined from GO1 by vacuum distillation, contained 20 compounds. D-Limonene was the dominant constituent in both GO1 (70.1%) and GO2 (73.96%), and other important constituents included β-pinene, α-pinene, β-phellandrene, octanal, d-carvone, α-terpineol, and linalool. Both the essential oils and their individual constituents (α-pinene, α-terpineol, β-phellandrene, octanal, and d-carvone) showed strong lethal fumigant effects against workers. Workers were more susceptible to GO2 than GO1, and octanal was more toxic to workers as compared with the other four constituents. When antennas of workers were treated with the two oils or the five constituents, their walking and gripping abilities were significantly suppressed, and there was an obvious bending or breaking phenomenon on the sensilla of the antennas. Fumigant activity by grapefruit essential oils and their main compounds were associated with their effects on the walking and gripping behavior of workers, and this confirmed that grapefruit essential oil is a promising, ecofriendly, and safe fumigant for the control of red imported fire ants.
研究领域:
生态学
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昆虫学
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环境科学
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DOI
PubMed
高影响因子
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
·
2023
·
IF 8.2
Xue Lin,Yuezhe Liu,Ruimin Wang,Jincheng Dai,Lu Wang,Jiachao Zhang
This study presents an innovative attempt to extract high-quality pectins from grapefruit ( Citrus paradisi ) peels by using deep eutectic solvents (DESs) as extraction agents. The maximum yield of betaine-citric acid (BC)-extracted pectin (BC-P) reached 36.47 % under the optimum process conditions: an L/S ratio of 25 mL/g, a pH of 2.0, and a temperature of 85 °C for 120 min. The yield of BC-P was significantly higher than HCl-extracted pectin (HCl-P, 8.76 %) under a pH of 2.0. In addition, the structural, physicochemical, and emulsifying properties of the purified pectins (BC-P and HCl-P) and commercial pectin (CP) were comparatively analyzed. Results showed that BC-P exhibited higher RG-I value, more arabinan side-chains, bigger Mw and Mn value than HCl-P. Moreover, the viscosity, G′ and G′′ of BC-P were significantly higher than those of HCl-P and CP. More importantly, BC-P demonstrated better emulsifying activity and stability compared to HCl-P and CP. When the concentration of BC-P was increased to 1.50 %, a stable emulsion containing a 50 % soybean oil fraction could be obtained. Our results confirmed that DESs can be considered as high-effective agents for pectin extraction. Pectins extracted from grapefruit peels can be as a promising natural emulsifiers that can be used in the food industry.
研究领域:
食品科学
·
化学工程
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DOI
PubMed
高影响因子
CARBOHYDRATE POLYMERS
·
2019
·
IF 6.044
Jiefen Cui,Wenbo Ren,Chengying Zhao,Wei Gao,Guifang Tian,Yuming Bao,Yunhe Lian,Jinkai Zheng
Structure and properties of pectin can be affected by extraction methods. In this study, grapefruit peel pectins extracted by HCl (at pH 1 [P1], 2 [P2], and 3 [P3]) and NaOH (at pH 9 [P9], 10 [P10], and 11 [P11]) were prepared and characterized. Atomic force microscopy (AFM) provided direct evidence of complex nano-structural patterns of pectins and revealed cross-linked networks of P10 and P11. Small-angle X-ray scattering (SAXS) demonstrated that P1, P2, and P3 possessed a relatively extended conformation, whereas P9, P10, and P11 displayed a three-dimensional structure and folded conformation. The compact and extended conformations of P3 contributed to its high viscosity in solution and the stability of the formed emulsion (75%). Porous surface and larger three-dimensional nanostructure (D max : 23 nm) of P10 facilitated its ion-binding capacity. Our results provide valuable insight into relationship between extraction methods and structure-properties of pectin, facilitating design of functional pectins.
研究领域:
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
Frontiers in Neuroanatomy
·
2015
·
IF 3.544
Hou Bing,Zhang Dan,Zhao Shan,Wei Mengping,Yang Zaifu,Wang Shaoxia,Wang Jiarui,Zhang Xin,Liu Bing,Fan Lingzhong,Li Yang,Qiu Zilong,Zhang Chen,Jiang Tianzi
Efficient optical clearance is fundamental for whole brain imaging. In particular, clearance of the brain without membrane damage is required for the imaging of lipophilic tracer-labeled neural tracts. Relying on an ascending gradient of fructose solutions, SeeDB can achieve sufficient transparency of the mouse brain while ensuring that the plasma membrane remains intact. However, it is challenging to extend this method to larger mammalian brains due to the extremely high viscosity of the saturated fructose solution. Here we report a SeeDB-derived optical clearing method, termed FRUIT, which utilizes a cocktail of fructose and urea. As demonstrated in the adult mouse brain, combination of these two highly water-soluble clearing agents exerts a synergistic effect on clearance. More importantly, the final FRUIT solution has low viscosity so as to produce transparency of the whole adult rabbit brain via arterial perfusion, which is impossible to achieve with a saturated fructose solution. In addition to good compatibility with enhanced yellow fluorescent protein, the cocktail also preserves the fluorescence of the lipophilic tracer DiI. This work provides a volume-independent optical clearing method which retains the advantages of SeeDB, particularly compatibility with lipophilic tracers.
研究领域:
神经科学
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生物医学工程
·
光学成像
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产品关联
DOI
PubMed
高影响因子
ACS Sustainable Chemistry & Engineering
·
2022
·
IF 9.224
Chuang Wang,Hou-Yong Yu,Zhouyu Miao,Dan Ge,Somia Yassin Hussain Abdalkarim,Juming Yao
A series of gas sensors based on compound conductive polymers and metal oxides with p–n heterojunctions have received a lot of interest. Also, the gas response is significantly enhanced using three-dimensional (3D) porous structured aerogels as carriers. Here, we report a sustainable and highly sensitive gas sensor based on self-formed grapefruit peel aerogel (GPA) loaded with polyaniline (PANI)-ZnO nanohybrids (PANI-ZnO@GPA). ZnO nanorods are produced in situ on the GPA surface (with a porosity of 93.8%) skeleton, adsorbing PANI nanoparticles (NPs) evenly to construct PANI-ZnO nanohybrids. PANI-ZnO@GPA demonstrates excellent gas sensing behaviors for ethanol, acetic acid, ammonia, and formaldehyde gases and high structural stability with 10% linear compression rebound and steady sensing properties even at 50% compression. It is shown that composite aerogel can successfully detect formaldehyde at the 10–1000 ppm level and with a sensitivity of 0.134% ppm–1. Furthermore, it is capable of restoring the initial sensing performance after only 3 min of sunlight exposure. This work is expected to provide new ways to expand the sustainable sensors in the rapid and sustainable detection of volatile organic compounds (VOCs).
研究领域:
材料科学
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环境科学
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产品关联
DOI
高影响因子
FOOD RESEARCH INTERNATIONAL
·
2017
·
IF 3.086
Wenjun Wang,Xingzhu Wu,Thunthacha Chantapakul,Danli Wang,Song Zhang,Xiaobin Ma,Tian Ding,Xingqian Ye,Donghong Liu
In the present study, acoustic cavitation assisted extraction (ACAE) which is a green approach was used for two-stage extraction of pectin from waste grapefruit peels regarding the specific two stages and different peel particle sizes. The yields, physicochemical properties and structure prediction of pectin from different peel particle sizes and different stages by two methods were compared. Highest pectin yield of 23.49% was achieved at the peel size of 0.9 mm and was slightly higher than the yield of 23.44% at finer particle size. ACAE achieved four times higher yield compared with conventional heating method (CHE) at the second stage. ACAE pectin which had lower molecular weight and degree of methoxylation was richer in rhamnogalacturonan-I (RG-I) region with long side chains compared with CHE pectin from chemical and FT-IR analysis. Based on the results, a potential general mechanism for ACAE of plant cell wall viscous polysaccharides was discussed in terms of the effects of cavitation on the swelling index and morphological study of residue to reveal the “barrier effect” during the process. Furthermore, the energy consumption for ACAE was significantly lower than the conventional method, indicating its promising application in industrial scale.
研究领域:
食品科学
·
生物化学
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产品关联
DOI
PubMed
高影响因子
Journal of Energy Storage
·
2024
·
IF 8.9
Yuqiong Xie,Shikun Xiao,Wenjing Chen,Xiaowu Hu,Yichi Liu,Lan Jiang,Lixiang Luo,Wenxing Luo,Yan Ma,Xiongxin Jiang,Yinshui He,Qinglin Li
Polyethylene glycol (PEG) is greatly limited in the fields of phase change heat storing and solar energy absorption due to its low thermal conductivity , poor thermal stability and weak photo-thermal effect. Aiming at solving the above concerns, this work structures a new composite phase change material (PCM)(PEG/BPC@Ag) with biomass grapefruit peel-based porous carbon foam (BPC) as the backbone material and Nano-Ag as a surface-modified component, and the phase change medium PEG by simple vacuum immersion method. The test findings revealed that the modified carbon foam with Nano-Ag has excellent three-dimensional structure and photo-thermal effect, which makes the prepared composite PCM(CPCM) have enhanced photo-thermal transformation capacity, an enhanced thermal conductivity and excellent thermal stability. Among them, the thermic conductivity of the PEG/BPC@Ag was increased by 2.1 folds to 0.68 W/Mk. similarly, its enthalpy efficiency λ and was increased from 82.0 % to 83.7 %, and the photo-thermal transformation performance θ was increased from 76.8 % to 91.2 %. As well, the PEG/BPC@Ag has exceptional reusability and thermic robustness performance. Comprehensively, the PEG/BPC@Ag prepared in this work has a wide potential for application both in waste heat recovery and solar energy absorption, as well as in thermal management of electronic components, as well as providing a feasible solution for solid waste recycling in utilization.
研究领域:
材料科学
·
能源技术
·
环境科学
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产品关联
DOI
高影响因子
FOOD HYDROCOLLOIDS
·
2016
·
IF 3.858
Wenjun Wang,Xiaobin Ma,Peng Jiang,Lyulin Hu,Zijian Zhi,Jianle Chen,Tian Ding,Xingqian Ye,Donghong Liu
In the present study, properties of pectin from grapefruit ( Citrus paradisi Macf. cv. Changshanhuyou) peel extracted by ultrasound-assisted extraction (UP), were compared with those of pectin extracted by conventional heating extraction (CP). UP exhibited a lower molecular weight ( M w ) but more concentrated M w distribution than CP. Although both UP and CP were high-methoxyl pectin, UP showed significantly lower degree of methoxylation but higher degree of acetylation. Monosaccharide composition analysis showed that the molecular structure of UP possessed more branch chains than CP, but little difference was observed in the chemical structures between UP and CP from FT-IR and NMR spectra analysis. X-ray diffraction (XRD) analysis further confirmed that UP had decreased level of crystallinity than CP. Moreover, thermogravimetric analysis (TGA) and differential scanning calorimetry (DSC) indicated UP had higher thermal stability. UP exhibited lower apparent viscosity and elasticity than CP, showing that ultrasound affected the rheological properties of pectin. Besides, antioxidant activity and lipase inhibitory capacity of UP significantly enhanced compared with CP.
研究领域:
食品科学
·
生物化学
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产品关联
DOI
高影响因子
PHYTOCHEMISTRY
·
2018
·
IF 3.186
Xuchao Jia,Haihui Xie,Yueming Jiang,Xiaoyi Wei
Thirteen flavonoids were isolated from the fresh sweet fruit of Averrhoa carambola L. (Oxalidaceae), commonly known as star fruit, and their structures were determined by spectroscopic and chemical methods. 8-Carboxymethyl-(+)-epicatechin methyl ester , pinobanksin 3- O -β- d -glucoside, and carambolasides M–Q were undescribed structures. (+)-Epicatechin, aromadendrin 3- O -β- d -glucoside, helicioside A, taxifolin 3′- O -β- d -glucoside, galangin 3- O -rutinoside, and isorhamnetin 3- O -rutinoside were reported from this species for the first time. Pinobanksin 3- O -β- d -glucoside and carambolasides M–Q showed more potent 2,2′-azinobis-(3-ethylbenzthiazoline-6-sulphonic acid) (ABTS) radical cation scavenging activity (IC 50 = 5.3–2.3 μM) than l -ascorbic acid (10.5 μM). Further, (+)-epicatechin, pinobanksin 3- O -β- d -glucoside, isorhamnetin 3- O -rutinoside, and carambolasides O–Q exhibited weak porcine pancreatic lipase inhibitory activity.
研究领域:
植物化学
·
药理学
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产品关联
DOI
PubMed
高影响因子
FOOD RESEARCH INTERNATIONAL
·
2026
·
IF 8.8
Jun Yu,Pei Wang,Xiaolong Chen,Xing Sun,Jing Ge,Xiangyang Yu
Fruit bagging reduced initial pesticide deposits but slowed dissipation rates in peaches. • Fruit bagging altered spirotetramat metabolism, delaying the accumulation of spirotetramat-enol. • Terminal residues and dietary risks in bagging treatment remained within safe limits. • Peach bagging increased fruit size but reduced sugars, phenolics and flavonoids. Fruit bagging is widely adopted in peach production. However, its integrated effects on pesticide fate and fruit quality under mixed-pesticide applications remain insufficiently understood. This study systematically investigated the effects of peach fruit bagging on the deposition, dissipation kinetics, metabolism, dietary risk, and fruit quality of four commonly used pesticides (difenoconazole, azoxystrobin, thiacloprid, and spirotetramat) under greenhouse and open-field conditions. Our findings indicate that fruit bagging significantly reduced the initial deposits of all pesticides, but it also slowed dissipation, extending half-lives from 3.83 to 5.91 days in unbagged fruits to 4.15–6.67 days in bagged fruits, with black bags generally exerting a stronger effect than yellow bags. Bagging also modified spirotetramat metabolism by lowering and delaying the accumulation of spirotetramat-enol ( S -enol), indicating altered parent-to-metabolite conversion within the bagged microenvironment. Despite lower dissipation rates ( k ), terminal residues of all pesticides remained below the established safety limits before harvest, and both chronic and acute dietary exposures remained within acceptable ranges. In addition, bagging increased fruit weight but generally decreased soluble solids, total sugars, total phenolics, and total flavonoids, while increasing titratable acidity. Overall, fruit bagging acts as a microenvironmental control measure that simultaneously reduces direct residue loading, reshapes pesticide fate, and influences fruit quality. These findings provide new insights into the role of agronomic practices in controlling pesticide residues and support the optimization of bagging strategies for safe and high-quality peach production. Download: Download high-res image (240KB) Download: Download full-size image
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DOI
高影响因子
Processes
·
2024
·Vol. 12
·期 4
·687
·
IF 2.8
Yannan Xiang,Siyi Tian,Xinyu Luo,Chenggang Cai,Yaowen Du,Hailong Yang,Haiyan Gao
The content of differentially abundant metabolites in the fermentation broth of grapefruit peels fermented byCordyceps militarisat different fermentation times was analyzed via LC–MS/MS. Small molecule metabolites and differential metabolic pathways were analyzed via multivariate analysis and Kyoto Encyclopedia of Genes and Genomes (KEGG) enrichment. A total of 423 metabolites were identified at 0, 2, 6, and 10 days after fermentation. Among them, 169 metabolites showed differential abundance, with significant differences observed between the fermentation liquids of every two experimental groups, and the metabolite composition in the fermentation liquid changed over the fermentation time. In summary, the upregulation and downregulation of metabolites in cancer metabolic pathways collectively promote the remodeling of cancer cell metabolism, facilitating increased glycolysis, alterations in TCA cycle flux, and enhanced biosynthesis of the macromolecules required for rapid proliferation and survival. This study provides new perspectives on the development of high-value-added agricultural and forestry byproducts and the development and research of functional foods.
研究领域:
食品科学
·
微生物学
·
代谢组学
·
药理学
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产品关联
DOI
高影响因子
危险品化学品经营许可证（带存储）