Camellia seed residue (CSR) is the main by-product after edible oil extraction from camellia seed, which is a potential low-cost source of soluble dietary fiber (SDF). However, the lower yield and functional properties limit the further application of CSR SDF in the food industry. To fully utilize this resource, in this study, the cellulose degrading fungus YC49 was screened and used to modify SDF in CSR. After fermentation with YC49, the physicochemical structure and hypolipidemic properties of CSR SDF were improved. Scanning electron microscopy, X-ray diffraction, molecular weight distribution and flow properties showed that fermentation endowed F-SDF (after fermentation) with a more porous microstructure, lower crystallinity, smaller molecular weight and higher viscosity. The results of monosaccharide composition and Fourier transform infrared spectroscopy pointed to differences in the monosaccharide percentages and functional group types between CK-SDF (control) and F-SDF. These alterations combined to achieve improvements in the hydration properties and hypolipidemic activities of CSR SDF, including water holding capacity, oil retention capacity, cholesterol adsorption capacity, pancreatic lipase inhibition capacity, and bile acid binding capacity. Overall, the results indicated that YC49 could be used as an ideal strain for the fermentation modification of SDF in CSR, and F-SDF has the potential to serve as a hypolipidemic component in functional foods.
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http://dx.doi.org/10.1039/d2fo02401b | DOI Listing |
Food Chem
December 2024
College of Life Science, Sichuan Agricultural University, Ya'an 625000, China. Electronic address:
Heat pretreatment plays a crucial role in affecting the quality, colour and aroma of camellia oil during the extraction process. This study aimed to investigate the effects of steaming, stir-frying, roasting, microwave and infrared treatment on the flavour and physicochemical quality of camellia seeds. The results indicated that, compared with unpretreated samples, the heat-pretreated ones exhibited increased oil content and browning degree, imparting a caramel colour with toasty and nutty flavours.
View Article and Find Full Text PDFFront Plant Sci
November 2024
State Key Laboratory of Tea Plant Biology and Utilization, Anhui Agricultural University, Hefei, China.
Cold significantly impacts the growth and development of tea plants, thereby affecting their economic value. Receptor-like kinases (RLKs) are thought to play a pivotal role in signaling the plant's response to cold and regulating cold tolerance. Among the RLK subfamilies, wall-associated receptor-like kinases (WAKs) have been investigated across various plant species and have been shown to regulate cell growth and stress responses.
View Article and Find Full Text PDFInt J Biol Macromol
December 2024
Institute of Chemical Industry of Forestry Products, Chinese Academy of Forestry, Key Laboratory of Biomass Energy and Material, Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Key Lab. of Chemical Engineering of Forest Products, National Forestry and Grassland Administration, National Engineering Laboratory for Biomass Chemical Utilization, Nanjing 210042, Jiangsu Province, China. Electronic address:
The evolution of production and lifestyle patterns has led to an increasing demand for multifunctional packaging materials that exceed the capabilities of traditional single-function options, thus driving continuous innovation in the field. In this study, a novel approach is presented, where camellia seed cake protein, derived from camellia seed oil production by-products, is incorporated into sodium alginate to create biobased active packaging films. The antioxidant and UV-shielding properties of the sodium alginate-camellia seed cake protein films are enhanced by the incorporation of camellia seed cake protein.
View Article and Find Full Text PDFSci Total Environ
December 2024
IRTA, Marine and Continental Waters, Carretera Poble Nou, Km 5.5, E-43540 La Ràpita, Catalonia, Spain. Electronic address:
Freshwater snails of the genus Pomacea, have been introduced worldwide with well-documented ecological and economic impacts. In rice, a crucial crop for global food security, apple snails have become a major pest. Chemical molluscicides, the most effective method of control, raise concerns due to their ecotoxicity.
View Article and Find Full Text PDFJ Food Sci
December 2024
Joint Research Center for Food Nutrition and Health of IHM, College of Food and Nutrition, Anhui Agricultural University, Hefei, China.
Green tea seed oil (GTSO; Camellia sinensis) is rich in bioactive compounds and has great potential for preventing intestinal inflammation. Conversely, high-fat diets have been shown to promote or aggravate gastrointestinal inflammation, and the bioactive ingredients of GTSO face difficulty passing through the gastrointestinal tract while remaining intact. This study employed whey protein isolate (WPI) and sodium carboxymethyl cellulose (CMC-Na) to prepare a GTSO-loaded double-layer emulsion.
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