Mannans,the predominant component in spent coffee grounds,can be transformed into mannose and man-nooligosaccharides.These derivatives serve as valuable prebiotics and bioactive components in the functional food and p...Mannans,the predominant component in spent coffee grounds,can be transformed into mannose and man-nooligosaccharides.These derivatives serve as valuable prebiotics and bioactive components in the functional food and pharmaceutical industries.In this study,two eco-friendly pretreatment techniques were utilized to process spent coffee grounds,enhancing the release of valuable sugars and improvingβ-mannanase accessibility,thereby increasing the yields of mannose and mannooligosaccharides.Following a combined treatment with laccase and cellulase,most soluble sugars were efficiently produced via microwave hydrothermal treatment at 210℃for 30 min.From 1 g of defatted spent coffee grounds,74.2 mg of mannose and 121.1 mg of man-nooligosaccharides were obtained,representing 83%of the total mannose content.This method has proven to be an efficient way to utilize spent coffee grounds,with significant implications for their high-value conversion and utilization.展开更多
A growing demand on functional foods for health-promoting effect and prevention of diseases leads to various studies on potential novel and effective prebiotics including their cost effective production processes.One ...A growing demand on functional foods for health-promoting effect and prevention of diseases leads to various studies on potential novel and effective prebiotics including their cost effective production processes.One of the plant-derived prebiotics,β-mannooligosaccharides(β-MOS),obtained fromβ-mannan-containing biomass,has attracted increasing interest in recent years,as the biomass sources are mainly by-products or wastes from various industries.Thus,this makes it ideal for large-scale production usingβ-mannanases,a mannan-degrading enzyme exhibiting the endo-acting activity cleaving atβ-1,4-mannosidic linkages.Numerous studies have re-ported thatβ-MOS are selectively utilized by gut microbiota and are associated with potential health benefits,such as antioxidant and immunomodulatory activities.In this review,we present the recent update on sources ofβ-mannanases,potential agricultural waste as substrates forβ-MOS production,its digestion mechanisms as well as recent development onβ-MOS production and its market.β-MOS production technology employingβ-man-nanases hydrolysis,which is environmentally friendly,simple,and low-cost while producing a high yield ofβ-MOS,is key to meeting the future demand for prebiotics.展开更多
基金supported by the Shuangcheng cooperative agreement research grant of Yibin,China(XNDX2022020012)National Natural Science Foundation of China(no.32172158)+1 种基金Chongqing Municipal College Student Innovation and Entrepreneurship Training Program(S202210635020)Postgraduate mentor team-building program of Southwest University(XYDS201905).
文摘Mannans,the predominant component in spent coffee grounds,can be transformed into mannose and man-nooligosaccharides.These derivatives serve as valuable prebiotics and bioactive components in the functional food and pharmaceutical industries.In this study,two eco-friendly pretreatment techniques were utilized to process spent coffee grounds,enhancing the release of valuable sugars and improvingβ-mannanase accessibility,thereby increasing the yields of mannose and mannooligosaccharides.Following a combined treatment with laccase and cellulase,most soluble sugars were efficiently produced via microwave hydrothermal treatment at 210℃for 30 min.From 1 g of defatted spent coffee grounds,74.2 mg of mannose and 121.1 mg of man-nooligosaccharides were obtained,representing 83%of the total mannose content.This method has proven to be an efficient way to utilize spent coffee grounds,with significant implications for their high-value conversion and utilization.
基金supported by the Office of the Ministry of Higher Education,Science,Research and Innovationthe Thailand Science Research and Innovation through the Kasetsart University Reinventing University Program 2024 and The National research of Thailand.
文摘A growing demand on functional foods for health-promoting effect and prevention of diseases leads to various studies on potential novel and effective prebiotics including their cost effective production processes.One of the plant-derived prebiotics,β-mannooligosaccharides(β-MOS),obtained fromβ-mannan-containing biomass,has attracted increasing interest in recent years,as the biomass sources are mainly by-products or wastes from various industries.Thus,this makes it ideal for large-scale production usingβ-mannanases,a mannan-degrading enzyme exhibiting the endo-acting activity cleaving atβ-1,4-mannosidic linkages.Numerous studies have re-ported thatβ-MOS are selectively utilized by gut microbiota and are associated with potential health benefits,such as antioxidant and immunomodulatory activities.In this review,we present the recent update on sources ofβ-mannanases,potential agricultural waste as substrates forβ-MOS production,its digestion mechanisms as well as recent development onβ-MOS production and its market.β-MOS production technology employingβ-man-nanases hydrolysis,which is environmentally friendly,simple,and low-cost while producing a high yield ofβ-MOS,is key to meeting the future demand for prebiotics.
