Bioactive Carbohydrates and Dietary Fibre最新文献

{"title":"Comparative effectiveness of indigestible carbohydrates and plant polyphenols on the gut microbiota profile and metabolite alterations of obese patients","authors":"Narinphop Chuaykarn ,&nbsp;Nattha Tampanna ,&nbsp;Piyanun Wangkulangkul ,&nbsp;Worrawit Wanitsuwan ,&nbsp;Kamthorn Yolsuriyanwong ,&nbsp;Santad Wichienchot","doi":"10.1016/j.bcdf.2024.100443","DOIUrl":"10.1016/j.bcdf.2024.100443","url":null,"abstract":"<div><p>This research aims to investigate the effects of indigestible carbohydrates and plant polyphenols on the alteration of gut microbiota and their metabolites in obese patients. The results showed that resistant starch type II had the highest diversity index, while banana inflorescence powder had the lowest diversity index of the gut microbiota. The gut microbiota profile exhibited that palm oil residue increased the abundance of Bacteroidetes from 23% to 44% and decreased the abundance of Firmicutes from 63% to 21%. This led to the lowest Firmicutes-to-Bacteroidetes (F/B) ratio of 0.5, followed by gnetum leaf powder (1.1), dragon fruit oligosaccharide (1.2), banana inflorescence powder (1.2), and resistance starch type II (1.6) compared to the initial fecal sample (F/B) ratio of 2.7. The isomaltooligosaccharide had an F/B ratio of 9.4. Palm oil residue could reduce the relative abundance of nucleotide biosynthesis, amino acid biosynthesis, aromatic compound synthesis, and peptidoglycan biosynthesis, all of which are related to obesity metabolic pathways. The short-chain fatty acids analysis showed that gnetum leaf powder and isomaltooligosaccharide exhibited the highest production of acetic acid (19.37 mM) and butyric acid (11.27 mM). Palm oil residue and gnetum leaf powder significantly impacted propionic acid production (10.93 and 10.08 mM, respectively). In the gut microbiota of obese humans, 3-(3-hydroxyphenyl) propionic acid derived from phenolic metabolites was detected during the fermentation of palm oil residue. In summary, our study demonstrated that plant polyphenols are more effective than indigestible carbohydrates, suggesting a novel alternative approach for the treatment of obesity.</p></div>","PeriodicalId":38299,"journal":{"name":"Bioactive Carbohydrates and Dietary Fibre","volume":"32 ","pages":"Article 100443"},"PeriodicalIF":0.0,"publicationDate":"2024-08-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142117513","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Amaranth fiber acts as fermentable substrate for children's fecal microbiota","authors":"Ana Clara Sabbione ,&nbsp;Ana Agustina Bengoa ,&nbsp;Graciela Liliana Garrote ,&nbsp;Adriana Scilingo ,&nbsp;María Cristina Añón ,&nbsp;Analía Graciela Abraham","doi":"10.1016/j.bcdf.2024.100447","DOIUrl":"10.1016/j.bcdf.2024.100447","url":null,"abstract":"<div><p>Fiber has an important role in modulating the intestinal microbiota and its metabolic activity. Since amaranth seeds are a good source of dietary fiber, this study aimed to evaluate the potential prebiotic capacity of fibers obtained from amaranth flour (AFF), a protein isolate (APIF), and a beverage (ABF) to modulate children's fecal microbiota in an <em>in vitro</em> fermentation model. Changes induced in fecal microbiota and the profile of short-chain fatty acids (SCFA) were evaluated after 24, 48, and 72h. APIF and ABF samples reached levels of 60 mM acetate, 35 mM propionate, and 8 mM butyrate, with significant increases in acetate and butyrate at 24 and 72h, and in propionate at the three times evaluated. Regarding AFF, significant increases of SCFA were observed after 72h with levels of 55 mM, 25 mM, and 6 mM for acetate, propionate, and butyrate respectively. Moreover, DGGE profiles at 24h fermentation of amaranth samples showed a high similarity (90%), locating in a cluster separated from inulin and basal medium. However, after 72h fermentation, AFF showed slight differences in the profile with 74% similarity with APIF and ABF. Sequencing results of 24h fermentation of amaranth fibers showed a marked decrease in <em>Fusobacterium</em> and enterobacteria compared with basal medium, accompanied by a significant increase in <em>Bacteroides</em> and <em>Parabacteroides</em>. These results constitute an important contribution in the search for new compounds that promote a healthy gut microbiota. Thereby, the incorporation of these new prebiotics into the diet could lead to the establishment of a widely diverse microbiota usually associated with a healthier state.</p></div>","PeriodicalId":38299,"journal":{"name":"Bioactive Carbohydrates and Dietary Fibre","volume":"32 ","pages":"Article 100447"},"PeriodicalIF":0.0,"publicationDate":"2024-08-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142087884","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Application of functional compounds from agro-industrial residues of Brazilian's tropical fruits extracted by sustainable methods in alginate-chitosan microparticles","authors":"Luiz Eduardo Nochi Castro ,&nbsp;Tiago Linhares Cruz Tabosa Barroso ,&nbsp;Vanessa Cosme Ferreira ,&nbsp;William Gustavo Sganzerla ,&nbsp;Vitória Helisa Burgon ,&nbsp;Matheus Queiroz ,&nbsp;Leomara Floriano Ribeiro ,&nbsp;Tânia Forster-Carneiro","doi":"10.1016/j.bcdf.2024.100441","DOIUrl":"10.1016/j.bcdf.2024.100441","url":null,"abstract":"<div><p>The extraction and encapsulation of bioactive compounds have emerged as promising strategies to enhance their utility in various industrial applications. This study explores functional compounds derived from tropical fruit waste, including grape pomace, jabuticaba, and dragon fruit. These compounds were extracted using sustainable methods such as ultrasound-assisted extraction, maceration, and pressurized liquid extraction for incorporation into alginate and chitosan microparticles. Among the extraction methods employed, pressurized liquid extraction demonstrated the highest efficiency in recovering phenolic compounds, anthocyanins, and betalains. The optimized microparticles were tailored to specific fruit sources, with chitosan concentrations of 0.19%, 0.27%, and 0.34%, and alginate concentrations of 2.26%, 1.79%, and 1.73% for grape pomace, dragon fruit husk, and jabuticaba peel, respectively. These microparticles exhibited encapsulation efficiencies ranging from 98.43% to 99.78%. Furthermore, they displayed low solubility (0.23%–0.39%) and high hygroscopicity (38.92%–41.01%). In vitro gastrointestinal digestibility tests showed that the bioaccessibility of the phenolic compounds reached up to 95%. This finding suggests that the encapsulated bioactive compounds remain highly bioavailable, making them potentially valuable in the development of pharmaceutical and health products as well as functional foods. In conclusion, this research underscores the significance of valorizing tropical fruit by-products in Brazil through pressurized liquid extraction, followed by their efficient encapsulation within alginate and chitosan matrices. This process not only reduces waste but also opens up exciting avenues for applications in the food and pharmaceutical sectors.</p></div>","PeriodicalId":38299,"journal":{"name":"Bioactive Carbohydrates and Dietary Fibre","volume":"32 ","pages":"Article 100441"},"PeriodicalIF":0.0,"publicationDate":"2024-08-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141964449","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"In vitro fecal fermentation characteristics and dynamic changes in physicochemical and structural properties of oat β-glucan","authors":"Jixiang Zhang ,&nbsp;Huanhuan Liu ,&nbsp;Sijia Yin ,&nbsp;Nifei Wang ,&nbsp;Shujun Wang ,&nbsp;Changlu Wang ,&nbsp;Ji Kang ,&nbsp;Abhishek Gupta ,&nbsp;Qingbin Guo ,&nbsp;Yanfang Liu","doi":"10.1016/j.bcdf.2024.100432","DOIUrl":"10.1016/j.bcdf.2024.100432","url":null,"abstract":"<div><p>Oat β-glucan (OG) is a common food in many diets, but the relationship between the structural changes of dietary fibre and the dynamic shifts in gut microbiota composition remains unclear. In this study, the dynamic variations of physicochemical and structural characteristics of OG at different fermentation stages were studied using an <em>in vitro</em> porcine colonic digestion model. lMeanwhile, the correlation between the molecular structure changes of OG and its regulation of gut microorganisms during fermentation was studied. The molecular weight of OG decreased with the prolongation of fermentation time due to the decomposition of the glucoside bond by gut microorganisms. Methylation analysis showed that the sugar residues in OG mainly included T-Glc<em>p</em>, 3-Glc<em>p</em> and 4-Glc<em>p</em>, while the proportions of 3-Glc<em>p</em> and 4-Glc<em>p</em> did not change significantly during the process of fermentation, demonstrating that gut microorganisms could equally decompose β-(1, 3) and β-(1, 4) glucoside bonds. During the fermentation process, OG inhibited the growth of harmful bacteria while promoting the growth of beneficial bacteria, especially <em>Lactobacillus</em>. Compared with gum arabic, hawthorn pectin, arabinoxylan, guar gum and dendrobium officinale polysaccharide, OG showed the fastest fermentation rate and highest <em>Lactobacillus</em> abundance. This study's results offer a scientific foundation for enhancing the conversion of oat β-glucan (OG) into prebiotics within the functional food industry. Additionally, they provide valuable insights into the reciprocal regulation between other structural polysaccharides and gut microorganisms.</p></div>","PeriodicalId":38299,"journal":{"name":"Bioactive Carbohydrates and Dietary Fibre","volume":"32 ","pages":"Article 100432"},"PeriodicalIF":0.0,"publicationDate":"2024-07-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141845249","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"New trends in the valuation of micro and nanocrystalline cellulose and their derivatives extracted from the wastes of palm frond for curing of peptic ulcers","authors":"Tamer I.M. Ragab ,&nbsp;Sally A. El Awdan ,&nbsp;Alaa M. Ali ,&nbsp;Gehan T. El-Bassyouni ,&nbsp;Wafa A. Helmy ,&nbsp;Al Shimaa G. Shalaby","doi":"10.1016/j.bcdf.2024.100440","DOIUrl":"10.1016/j.bcdf.2024.100440","url":null,"abstract":"<div><p>The current study was directed to explore new natural products that alleviate inflammation with the least harming effects on the gastric mucosa. This study examined the anti-ulcerative properties of micro and nanocrystalline cellulose (MCC, NCC) palm frond and their chemically modified samples (sulfated (SMCC and SNCC), methylated (MMCC and MNCC) and phosphorylated (PMCC and PNCC)). The lowest prebiotic index (I) was recorded in case of the MMCC and MNCC extract with <em>L. Reuteri</em> (I = 1) while the higher prebiotic index was recorded in case of the PMCC against <em>L. casei</em> (I = 3.7). All treated groups showed significant improvements in the ulcer scores (P &lt; 0.05) compared to the control (indomethacin) group. However, MMCC showed marked effects similar to ranitidine. A significant decrease was found in pro-inflammatory cytokines (IL-6 and TNF-α) and pro-apoptotic gene (Bax) in all treated groups compared to the ulcer-induced group. In conclusion, the histopathological evaluation of MNCC, PNCC and SNCC had superior ameliorating effect on gastric ulcer induced in rats when compared to Omeprazole 20 mg/kg and other treated groups (MMCC, PMCC, SMCC).</p></div>","PeriodicalId":38299,"journal":{"name":"Bioactive Carbohydrates and Dietary Fibre","volume":"32 ","pages":"Article 100440"},"PeriodicalIF":0.0,"publicationDate":"2024-07-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141845990","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Designing carrageenan-based hydrogels for drug delivery applications: Evaluation of physiochemical and biomedical properties","authors":"Nistha Thakur ,&nbsp;Baljit Singh ,&nbsp;Sohini Sharma ,&nbsp;Shamsher Singh Kanwar","doi":"10.1016/j.bcdf.2024.100439","DOIUrl":"10.1016/j.bcdf.2024.100439","url":null,"abstract":"<div><p>This research article presents the potential of naturally occurring seaweed polysaccharides in developing functional materials for use in biomedical applications, focusing on sustainable development. Herein, Carrageenan (CG) was utilized to design hydrogels for use in drug delivery (DD) applications. These hydrogels were prepared by copolymerization reaction of poly(bis[<em>2</em>-(methacryloyloxy)ethyl] phosphate and poly(acrylamide) onto CG by covalent and supramolecular interactions. Copolymers were characterized by Field emission-scanning electron micrographs (FE-SEM), Energy dispersive X-ray analysis (EDAX), Fourier transform infrared spectroscopy (FTIR), ¹³C nuclear magnetic resonance (NMR), X-ray diffraction (XRD). FESEM images revealed uneven heterogeneous morphology while XRD revealed development of amorphous short range orders of polymer chains. The hydrogel revealed 177 % RD cell viability which indicated non-cytotoxicity to mammalian cells. The hydrogels also promoted proliferation of cells which is useful for cell adhesion, wound dressings and tissue engineering applications. The release of antibiotic drug vancomycin from hydrogels occurred in sustained manner and obeyed non-Fickian diffusion mechanism. The drug release data was best described by Higuchi kinetic model. Drug encapsulated hydrogel exhibited antimicrobial activity against <em>P. aeruginosa, E. coli and S. aureus</em> bacteria. The copolymers revealed biocompatibility during polymer-blood interaction while polymer-mucus membrane interaction demonstrated their mucoadhesive nature. Antioxidant nature of copolymers was demonstrated in DPPH free radicals scavenging assay. These properties suggested that hydrogel could be explored to design drug delivery systems.</p></div>","PeriodicalId":38299,"journal":{"name":"Bioactive Carbohydrates and Dietary Fibre","volume":"32 ","pages":"Article 100439"},"PeriodicalIF":0.0,"publicationDate":"2024-07-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141624020","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Thermal processing of wheat bran: Effect on the bioactive compounds and dietary fiber","authors":"Reshma Saroj ,&nbsp;Seeratpreet Kaur ,&nbsp;Mudasir Ahmad Malik ,&nbsp;Vinita Puranik ,&nbsp;Devinder Kaur","doi":"10.1016/j.bcdf.2024.100433","DOIUrl":"https://doi.org/10.1016/j.bcdf.2024.100433","url":null,"abstract":"<div><p>In the current study bran from six wheat cultivars were subjected to different heat treatments and the effect of heat treatments on the bioactive composition, dietry fibre content and structure of wheat bran was evaluated. The findings indicated that thermally treated wheat bran contains higher soluble dietary fiber, but lower insoluble and total dietary fiber than untreated wheat bran samples. Microwave heat treatment caused highest increase in the soluble dietary fiber content and highest soluble dietary fiber content was observed in bran of WH-1105 wheat variety. The presence of six different phenolic acids evaluated were gallic acid, <em>p</em>-hydroxybenzoic acid, ferulic acid, syringic acid, vanillic acid, and <em>p</em>-coumeric. Heat treatment caused significant increase in all the six phenolic acids. The bran sample obtained from wheat variety WH-1105 showed highest level of all phenolic acid among the all-bran sample obtained from other wheat varieties. Among the all heat treatments, microwave heat treatment caused highest increase in the phenolic acids. Among all phenolic acid evaluated highest increase was observed for syringic acid after microwave heat treatment in the bran of WH-1105 wheat variety. Further it was observed that crystallinity index significantly increased after thermal treatment and microwave heating caused higher increase in crystallinity than other heat treatments.</p></div>","PeriodicalId":38299,"journal":{"name":"Bioactive Carbohydrates and Dietary Fibre","volume":"32 ","pages":"Article 100433"},"PeriodicalIF":0.0,"publicationDate":"2024-07-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141583442","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Effects of processed oats and pinto beans on the composition of human gut microbiome: An in vitro study","authors":"Yongjia Gong ,&nbsp;Liping Zhao ,&nbsp;Mukund Karwe ,&nbsp;Juzhong Tan","doi":"10.1016/j.bcdf.2024.100434","DOIUrl":"https://doi.org/10.1016/j.bcdf.2024.100434","url":null,"abstract":"<div><p>Oats and pinto beans, which are rich in dietary fibers and plant proteins, are two common ingredients for many processed food products, such as puffed snacks and canned foods. The objective of this study was to investigate the gut microbiome response to processed oats and pinto beans food products. Raw oats and pinto beans were canned, boiled, and extruded at selected temperatures to simulate the commercial food processing practices. The processed oat and pinto bean samples were digested in an <em>in vitro</em> digestion system, and were subjected to <em>in vitro</em> fermentation by gut bacteria from human feces, which simulated the reactions between the undigested food components and the gut microbiome. The resulting metabolites were quantitatively and qualitatively measured, the compositions of the gut microbiome were determined by 16S rRNA sequencing, and the microbiota were classified and clustered based on their amplicon sequence variants (ASVs) and co-abundancies. The results showed that pinto beans generated more gas and short-chain fatty acids (SCFA) than oats. Boiled oats had a good retention of non-digestible fermentable contents (NDFCs) for the gut microbiota to act on, resulting in greater gas and acid production than other processed oat samples. However, for processed pinto beans, high-temperature extrusion and canning resulted in more NDFCs through starch gelatinization and retrogradation. Guild-based analysis was applied to microbiome analysis to identify key bacteria contributing to microbial shift. Bacteria such as <em>Escherichia-Shigella, Streptococcus, Anaerostipes</em> were promoted in extruded oats, while <em>Lachnospiraceae, Eubacterium hallii, Butyricicoccus</em> were significantly promoted in boiled and low-temperature extruded pinto beans.</p></div>","PeriodicalId":38299,"journal":{"name":"Bioactive Carbohydrates and Dietary Fibre","volume":"32 ","pages":"Article 100434"},"PeriodicalIF":0.0,"publicationDate":"2024-07-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141594343","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Prebiotic potential of rambutan peel with cardamom oil and its application to extend the shelf-life of plant-base rice milk","authors":"Pailin Chaidech ,&nbsp;Kitiya Suhem ,&nbsp;Nattana Kongchoosi ,&nbsp;Narumol Matan","doi":"10.1016/j.bcdf.2024.100438","DOIUrl":"10.1016/j.bcdf.2024.100438","url":null,"abstract":"<div><p>This study explores the impact of cardamom oil vapor on the structure, functional performance, and prebiotic properties of rambutan peel, along with its application in plant-based rice milk. The prebiotic potential of rambutan peel, both with and without cardamom oil at 30 μl, was investigated on probiotics (<em>Lactobacillus plantarum</em> and <em>Bifidobacterium longum</em>) and their effectiveness against gut pathogenic bacteria (<em>Escherichia coli</em>, <em>Listeria monocytogenes</em>, and <em>Salmonella</em> Typhimurium). The effects of treated rambutan peel on the shelf-life and quality of plant-based rice milk were studied at 4 °C for 20 days. Rambutan peel exhibited a high content of dietary fiber, with approximately 33 % insoluble dietary fibers and 15 % soluble fibers. After treatment of the peel with cardamom oil, a larger area and bigger pore size on rambutan peel were observed, along with a higher oil capacity content, phenolic color pigments, and antioxidant activity. Rambutan peel with cardamom oil increased the relative abundances of <em>Lactobacillus</em> and <em>Bifidobacterium</em> while decreasing the relative abundances of all the gut pathogens in this study. The treated rambutan peel formed a gelling structure in the texture of rice milk with higher viscosity. Additionally, the shelf-life of rice milk containing treated rambutan peel was found to be at least 20 days without the growth of pathogenic bacteria, compared to the control (&lt;5 days). These findings highlight the potential application of rambutan peel with cardamom oil as a novel prebiotic active ingredient in functional foods for the first time, producing a safe, functional product that enhances the utilization of waste fruit.</p></div>","PeriodicalId":38299,"journal":{"name":"Bioactive Carbohydrates and Dietary Fibre","volume":"32 ","pages":"Article 100438"},"PeriodicalIF":0.0,"publicationDate":"2024-07-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141624019","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Effects of adding blueberry residue powder and extrusion processing on microstructure and in vitro digestibility of indica rice flour","authors":"Xinzhen Zhang ,&nbsp;Yang Gao ,&nbsp;Ran Wang ,&nbsp;Gexing Zhang ,&nbsp;Yue Sun ,&nbsp;Xueling Li ,&nbsp;Jin Liang","doi":"10.1016/j.bcdf.2024.100435","DOIUrl":"https://doi.org/10.1016/j.bcdf.2024.100435","url":null,"abstract":"<div><p>Using crushed indica rice flour as the main raw material, after adding blueberry residue powder, the indica rice puffed powder containing blueberry residue (IREPBR) was obtained through extrusion and crushing. The effects of adding blueberry residue and extrusion processing on the microstructure and <em>in vitro</em> digestibility of indica rice flour were studied. The basic component analysis results showed that the fat and total starch content of indica rice powder significantly decreased after adding blueberry residue powder and extrusion puffing, while the total dietary fiber content significantly increased. The results of scanning electron microscope (SEM) showed that there were many pits and bubbles in the extruded indica rice flour after adding blueberry residue powder. Compared with indica rice flour (IRF), its Water Absorption Index (WAI) and Water Solubility Index (WSI) significantly increased, and its thermal properties also changed. XRD and FT-IR analysis showed that after extrusion, the crystalline morphology of indica rice starch changed from A-type to V-type, and the relative crystallinity also changed. In addition, the content of resistant starch (RS) in indica rice flour added with blueberry residue powder and processed by extrusion increased significantly, while the starch hydrolysis rate and estimated blood glucose index (eGI) decreased.</p></div>","PeriodicalId":38299,"journal":{"name":"Bioactive Carbohydrates and Dietary Fibre","volume":"32 ","pages":"Article 100435"},"PeriodicalIF":0.0,"publicationDate":"2024-07-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141583009","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}