FOOD CHEMISTRY
·
2012
·
IF 3.655
Qin Liu,Li Wu,Huiming Pu,Chunyang Li,Qiuhui Hu
The profile and distribution of soluble and insoluble phenolics in 10 rapeseed ( Brassica napus ) varieties were studied in this work. Photometric results show that the soluble total phenolic content (TPC) and the total tannin content (TTC) of rapeseed dehulled flours are much higher than those of rapeseed hulls. Soluble and insoluble phenolics were further analysed by HPLC/MS and MS/MS. For soluble phenolics, seven species were identified and quantified. Sinapine was found to be the major component in both defatted rapeseed hulls and dehulled flours, with its content ranging from 0.93 to 1.76 mg/g and 15.65 to 21.88 mg/g, respectively. For insoluble phenolics, eight phenolic acids were detected in rapeseed hulls, while only two of them were found in their dehulled flours. Sinapic acid and protocatechuic acid, which also were found in dehulled flours, were identified as two major insoluble phenolics in rapeseed hulls. Insoluble TPCs in defatted rapeseed hulls and dehulled flours were shown to be in the similar range.
研究领域:
植物化学
·
食品科学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Current Pharmaceutical Analysis
·
2022
·Vol. 18
·期 2
·193-198
·
IF 0.743
Xu Bo-Yang,Zhu Si-Qi,Cheng Xian-Xin,Xu Yu,Liu Ji-Wu
Background: Compound Niuhuang Xiaoyan capsule is a realgar and cinnabar-containing traditional Chinese medicine, the contents of total arsenic and total mercury are found over regulation defined limits. However, only small amounts of arsenic in realgar and mercury in cinnabar are dissolved
in the gastric juice, so the determination of soluble arsenic and soluble mercury is more significant than that of total arsenic and total mercury in Compound Niuhuang Xiaoyan capsule. Objective: To study the contents of total arsenic, total mercury, soluble arsenic and soluble mercury
in Compound Niuhuang Xiaoyan capsule. Methods: Microwave digestion and semi-bionic extraction were used to pretreat the samples of Compound Niuhuang Xiaoyan capsule, and the inductively coupled plasma mass spectrometry method was established to determine the contents of total arsenic,
total mercury, soluble arsenic and soluble mercury in Compound Niuhuang Xiaoyan capsule. The accuracy of the established method was further evaluated by using a certified standard reference material prepared from dried citrus leaves (GBW10020(GSB-11)). Results: The spiked recoveries were
within 95-105 %. The R.S.D% of repeatability (N=6) and precision (N = 6) were below 5.0 %. The correlation coefficients of linear (R) for arsenic and mercury were both above 0.998. The limits of quantification (LOQ) were below 0.1 μg/L. The contents of As and Hg were defined in the dried
citrus leaves and very near to the standard values provided by the manufacturer. The established method was applied for the analysis of three batches of Compound Niuhuang Xiaoyan capsule produced by three different manufacturers successfully. Insufficient realgar or cinnabar was formulated
in some Compound Niuhuang Xiaoyan capsule samples. Conclusion: The analysis showed that the contents of soluble arsenic and soluble mercury in artificial gastric juice were significantly less than that of total arsenic and total mercury in Compound Niuhuang Xiaoyan capsule. The results
provided a reference for further study on the toxicology and pharmacokinetics of Compound Niuhuang Xiaoyan capsule.
研究领域:
中药学
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分析化学
·
毒理学
✓ 已验证
DOI
高影响因子
Foods
·
2024
·Vol. 13
·期 19
·3174
·
IF 4.7
Qiaozhu Wei,Jingtao Cui,Weimin Zhang,Lianzhou Jiang,Tian Li
Coconut chips are a popular leisure food, but the residual crumbly feeling after chewing affects the eating experience. To address this problem, we investigated the mechanism of degradation of insoluble dietary fiber (IDF) from coconut chips by ultra-high pressure (UHP). The optimal conditions for UHP treatment were 100 MPa and 40 min. After UHP treatment, the hardness decreased by 60%, and the content of soluble dietary fiber (SDF) increased by 55%. So far, the meaning of SDF has not been defined. The microstructure of IDF was damaged and the surface was rough. There was no obvious change in the chemical structure. The position of the characteristic diffraction peaks was basically unchanged, but the crystallinity dropped by almost three times. The thermal stability decreased, and the composition of the monosaccharides changed. Together, UHP treatment can improve the problem of the residual crumbly feeling after chewing coconut chips and improve the quality of the product.
研究领域:
食品科学
·
生物化学
✓ 已验证
DOI
PubMed
高影响因子
FOOD CHEMISTRY
·
2025
·
IF 9.8
Lingfang Zhang,Qianyi Jiang,Binghua Sun,Xiaoxi Wang,Sen Ma
This study investigated the effect of changing the ratio of soluble (SDF) and insoluble (IDF) wheat bran dietary fiber on matrix structure and protein digestion in wheat noodles. Results showed that SDF at a low ratio (≤ 3.5) induced a compact matrix structure, which decreased protein digestibility to 67.70 % and total amino acids release to 140.67 mg/g protein, respectively. The compaction of the noodle matrix could be attributed to the promotion of cross-linking between D-type low molecular weight gluten and γ-gliadin by a small amount of SDF, reducing lacunarity from 0.28 to 0.16. A high SDF ratio (>3.5) induced a more fragmented matrix structure, increasing protein digestibility to 76.88 %. Notably, at a higher SDF ratio (>4.5), the concentration-dependent static quenching on enzymatic sites of SDF became prominent, slightly reducing gastric protein digestibility. In summary, an SDF ratio of 2.0–2.5 helps to reduce the inhibition of SDF on protein digestion.
研究领域:
食品科学
·
营养学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
FOOD HYDROCOLLOIDS
·
2024
·
IF 11
Lili Chen,Yuan Hao,Yihan Wang,Gang Wu,Yanjun Zhang,Xu Wang
Breadfruit is rich in starch and pectin. The pectin can alter the digestion process of starch, however, the specific mechanism by which various soluble pectin impact starch digestion remains unclear. The effects of water-soluble pectin (WSP), chelating agent soluble pectin (CSP), and sodium carbonate soluble pectin (SSP) on the digestibility of breadfruit starch were characterized by means of RVA, FTIR, DSC, ITC, SEM and in vitro digestion. The results showed that the three types of pectin could inhibit starch digestion. The addition of CSP increased the resistant starch content from 8.18% to 18.07%, and the addition of SSP increased the slow-digested starch content from 22.55% to 35.24%. The three pectin have different ways in inhibiting starch digestion. They have different principles in inhibiting starch digestion. WSP binds with the dissolved amylose to form a membrane that covers the surface of the starch particles. However, CSP and SSP penetrate into the starch granule during the gelatinization process, blocking the pores on the starch particle surface, thus reducing the starch digestibility.
研究领域:
食品科学
·
生物化学
✓ 已验证
产品关联
DOI
高影响因子
Food & Function
·
2021
·Vol. 12
·期 10
·4696-4706
·
IF 5.396
Qi Li,Xiangjun Fang,Hangjun Chen,Yanchao Han,Ruiling Liu,Weijie Wu,Haiyan Gao
The effects of the administration of bamboo shoot (Phyllostachys edulis) dietary fiber (BSDF) on high-fat diet (HDF) induced hyperlipidemia were studied with SD rat models. The results indicated that the body weight of rats and the mass of their adipose tissue were significantly (P < 0.05) decreased after the combination treatment of soluble dietary fiber (SDF) and insoluble dietary fiber (IDF). The levels of total cholesterol, triglyceride, and low-density lipoprotein cholesterol were significantly (P < 0.05) decreased by 30.20%, 53.28% and 35.63%, respectively, compared to those of the model group. The levels of serum alanine aminotransferase, aspartate aminotransferase, leptin, and insulin-like growth factor-1 of the SDF + IDF group were also significantly lower than those of the HDF model group (P < 0.05). Additionally, the perirenal fat percentage and body fat percentage in the SDF + IDF group were reduced by 31.61% and 25.09%, respectively. IDF exhibited better hypolipidemic ability than SDF in HFD induced rats at the same dose, while SDF and IDF showed a synergistic hyperlipidemia prevention effect. The mRNA expression levels of lipid synthesis genes SREBP-1c and FAS were significantly down-regulated by SDF + IDF treatment (P < 0.05). These results suggested that BSDF composed of IDF and SDF, with potential hypolipidemic effects, could be used in the production of health-beneficial food.
研究领域:
营养学
·
分子生物学
·
医学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Nutrients
·
2023
·Vol. 15
·期 7
·1718
·
IF 5.9
Manman Zhao,Beibei Wang,Li Li,Wei Zhao
Although many efforts have been made to characterize the functional properties of flaxseed, knowledge concerning the properties of insoluble and soluble dietary fibers in flaxseed is still limited. Here, insoluble and soluble dietary fibers were extracted from flaxseed cake—a valuable resource that has not been fully exploited. Subsequently, their monosaccharide compositions, structural properties, and anti-obesity effects in male mice were characterized. The anti-obesity effects of flaxseed cake insoluble dietary fiber (FIDF), flaxseed cake soluble dietary fiber (FSDF), and FIDF combined with FSDF in diet-induced obese mice were investigated in our study. Supplementation with FSDF alone or FIDF and FSDF together lowered the fat accumulation, improved the serum lipid profile, increased the basal metabolism, and improved the gut microbiota of obese mice. Supplementation with FIDF and FSDF together significantly enriched the abundance ofg_Akkermansiaandg_Bifidobacterium, which are negatively associated with obesity. Supplementation with FIDF alone improved the liver lipid profile, raised the basal metabolism, and enhanced the short-chain fatty acid levels in the guts of the mice. In conclusion, our results collectively support the therapeutic potential of FIDF and FSDF in obesity treatment and indicate that FIDF and FSDF play different roles in the process of obesity treatment. Furthermore, our results provide critical information for flaxseed cake resource exploitation.Keywords:flaxseed cake;insoluble dietary fiber;soluble dietary fiber;high-fat diet;lipid accumulation;gut microbiota
研究领域:
营养学
·
代谢研究
·
食品科学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Foods
·
2024
·
IF 4.7
Wanyu Dong,Xueting Liu,Yang Yi,Limei Wang,Wenfu Hou,Youwei Ai,Hongxun Wang,Ting Min
This study investigated the impact of variety and harvest time on the visual appearance, nutritional quality, and functional active substances of six lotus root cultivars: “Xinsanwu”, “Wuzhi No. 2”, “Baiyuzhan”, “Huaqilian”, “Elian No. 6”, and “Elian No. 5”. Samples were collected monthly from December 2023 to April 2024. A nutrient analysis revealed a decrease in the water content with a delayed harvest. The total soluble solids and soluble sugar content peaked towards the end and middle-to-late harvest periods, respectively. Starch levels initially increased before declining, while the soluble protein exhibited a triphasic trend with an initial rise, a dip, and a final increase. The vitamin C (Vc) content varied across cultivars. Functional active substances displayed dynamic changes. The total phenolics initially decreased, then increased, before ultimately declining again. The total flavonoid content varied by both cultivar and harvest time. The phenolic acid and flavonoid content mirrored the trends observed for total phenolics and total flavonoids. Gastrodin was the most abundant non-flavonoid compound across all varieties. “Wuzhi No. 2” and “Baiyuzhan” displayed higher levels of functional active substances and starch, while the Elian series and “Xinsanwu” cultivar exhibited a greater content of Vc, soluble sugar, and soluble protein. Specific harvest periods yielded optimal results: “Wuzhi No. 2” (H1 and H5), “Huaqilian” (H2), and “Baiyuzhan” (H3 and H4) demonstrated a high nutrient and functional active substance content. Overall, the lotus roots harvested in period H4 achieved the highest score. Overall, this study provides the foothold for the rapid identification of superior lotus root cultivars and the valorization of lotus root by-products via advanced processing methods. Additionally, it offers valuable insights for market participants and consumers to select optimal varieties and harvest times based on their specific needs.
研究领域:
农业
·
营养学
·
食品科学
·
植物生理学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
PLANT PHYSIOLOGY AND BIOCHEMISTRY
·
2023
·
IF 6.5
Xiong Yang,Qian Zhang,Ning Yang,Muxi Chang,Yaoyao Ge,Huirong Zhou,Guolei Li
Quercus variabilis and Quercus aliena are two native tree species in China, which have similar habitats, and their regeneration mainly depends on acorn dispersal. This study analyzed the contents of water, soluble sugar, starch, soluble protein , and total phenolics in acorns and cupules during the whole development process to explore the difference between species. Thereinto, starch and total phenol occupied the dominant roles as their high contents. The acorn starch contents increased sharply during development in both species, but the contents in Q . variabilis were almost twice those of Q . aliena when mature. Similarly, high expression levels of starch synthase , soluble starch synthase 2 ( SSS2 ) were also found in the acorns of Q . variabilis . The total phenol contents in Q . variabilis acorns were high at the early stages, and decreased sharply to similar contents in Q . aliena when mature. Additionally, the cupules in Q . variabilis had high contents of total phenols during the whole development period. Similar trends were also found in the expression patterns of UGT84A13 and SDH . The high total phenols in acorns and cupules of Q . variabilis probably protect the acorns from Mechoris ursulus , as only Q . aliena suffered a severe pest infestation in the early development stages. This study not only clarifies the interspecific difference between storage and defense substances during the development process in acorns and cupules, but also deepens understanding the specialized mechanisms of plant–pest/animal interactions in Quercus .
研究领域:
植物学
·
植物生态学
·
植物生理学
·
分子生物学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Foods
·
2022
·Vol. 11
·期 8
·1065
·
IF 5.561
Xiaotong Zhou,Liu Liu,Jianke Li,Lin Wang,Xueying Song
The utilization of industrial by-products is becoming more and more important for resource utilization. In this study, soluble dietary fiber (SDF) was extracted from Jerusalem artichoke residue, and a series of characterizations of SDF were carried out. The results showed that SDF had good properties. SDF (0%, 0.1%, 0.2%, 0.3%, and 0.4%) and chitosan (2%) were further used to prepare the coating that was used for the preservation of blueberry. The chemical structure of the film was obtained by FT-IR and XRD analysis. The microstructure of the film was analyzed by SEM, and the properties of the film were tested. The blueberry fresh-keeping test proved that the SDF-added film could effectively prolong the quality of blueberries in storage for 16 days. After 16 days of storage, compared with the control group, the decay rate of the coating group with 0.2% SDF decreased by 16.3%, the consumption of organic acids decreased by 43.7%, and the content of anthocyanin increased by 29.3%. SDF has a potential application in food preservation.Keywords:Jerusalem artichoke;soluble dietary fiber;blueberry
研究领域:
食品科学
·
资源利用
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Food Production Processing and Nutrition
·
2024
·Vol. 6
·期 1
·1-17
·
IF 4
Sun Yujiao,Li Baobao,Xue Yuanye,Wang Jiankang,Miao Bingbing,Liu Yang,Li Yanjun,Cao Yungang,Chang Dawei
Stipes are the major waste from the processing of Lentinus edodes . To make full use of L. edodes stipes (LES), different fractions of LES polysaccharides (LESPs) were first obtained by water extraction and gradient ethanol precipitation. Afterwards, the LES residues were treated with an optimal combination of Aspergillus niger and Saccharomyces cerevisiae for the preparation of soluble/insoluble dietary fibers (LESS/LESI) using the response surface methodology and the Box-Behnken design. Subsequently, the in vitro immunomodulatory activity of LESPs and LESS, as well as the adsorption capacities of LESI were evaluated. The results showed that LESPs were neutral polysaccharides, mainly containing glucose. The optimal parameters for modifying the residues of LES were the followings: 4% ( w / w ) A. niger , 8% ( w / w ) S. cerevisiae , 31 ℃, 3 d, and a solid–liquid ratio of 1:12.5 in a yield of 14.73%/82.45% of LESS/LESI, respectively. The in vitro immunomodulatory activity assays revealed that LESPs and LESS had potent immunostimulatory activity to increase phagocytosis, acid phosphatase activity and nitric oxide production of RAW264.7 murine cell macrophages. The evaluation of adsorption capacities revealed that LESI owned stronger water holding capacity, oil holding capacity and water swelling capacity. This research could provide an effective way to fully utilize discarded L. edodes stipes with high added-value. Graphical Abstract An effective strategy was built to fully utilize discarded L. edodes stipes by preparing polysaccharides (LESPs-20, LESPs-50 and LESPs-80), soluble and insoluble dietary fibers (LESS/LESI). Their products showed immunomodulatory activity and adsorption capacities.
研究领域:
食品科学
·
生物化学
·
微生物学
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
·
2024
·Vol. 171
·期 12
·122505
·
IF 3.1
Dongsheng Jiang,Zhuan Zhao,Huan Zhang,Ruifang Wang,Jianxun Song,Yusi Che,Jilin He
In this study, metallic niobium was produced by electrolysis in a NaCl-KCl melt using NbCxOy as a soluble anode. The anodic dissolution behavior of NbCxOy in the NaCl-KCl melt and the reduction mechanism of niobium ions were examined using cyclic voltammetry, linear sweep voltammetry, square wave voltammetry, electrochemical impedance spectroscopy, and chronopotentiometry. The results revealed that the electrode reduction process of niobium ion was Nb(Ⅴ) → Nb(Ⅲ) → Nb(Ⅰ) → Nb, with these reactions being diffusion-controlled. During successive multiturn scans, the reduction process of niobium ions favored the pathway of Nb(V) → Nb(III) → Nb. As the electrolytic voltage increased, the dissolution of niobium ions in NbCxOy also increased, with a tendency to oxidize into high-valence niobium ions. Constant-current electrolysis in a NaCl-KCl melt, using NbCxOy as the anode and Mo rods as the cathode resulted in the deposition of mainly metallic niobium on the Mo cathode, manifesting that NbCxOy can be used to extract metallic niobium. This study provides a theoretical foundation for the realization of a green and efficient extraction process for metallic niobium.
研究领域:
冶金学
·
电化学工程
✓ 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）