Optimization of alkaline pretreatment and enzymatic hydrolysis for the extraction of xylooligosaccharide from rice husk

Khat‐udomkiri, Nuntawat; Sivamaruthi, Bhagavathi Sundaram; Sirilun, Sasithorn; Lailerd, Narissara; Peerajan, Sartjin; Chaiyasut, Chaiyavat

doi:10.1186/s13568-018-0645-9

Cited by 50 publications

(9 citation statements)

References 42 publications

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“…An increase in DXRF concentrations from to 30 mg/ml resulted in an increase in the hydrolysate (4.8, 6.7 and 7.1 mg/ml, respectively) for 36 h. However, hydrolysis rate for 36 h decreased from 81 to 40% with the increase in DXRF concentrations (from 10 to 30 mg/ml). This is ascribable to a reduction of water content in the reaction mixture including too much amount of substrate as reported in past studies [36][37][38]. Therefore, we concluded that 10 mg/ml DXRF is suitable for XOS production.…”

Section: Effect Of Dxrf Concentration On Xos Productionsupporting

confidence: 68%

Enzymatic production of xylooligosaccharides from red alga dulse (Palmaria sp.) wasted in Japan

Yamamoto

Kishimura

Kinoshita³

et al. 2019

Process Biochemistry

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Red alga dulse (Palmaria sp.) has xylan with a small amount of cellulose and less lignin, hence these characteristics may provide some advantages in the enzymatic production of xylooligosaccharides (XOS). To evaluate dulse xylan as XOS source, we prepared xylan rich fraction (DXRF) and attempted XOS production using commercial enzymes. 13.8% of xylan rich fraction (DXRF: containing 52.2% of xylan) was obtained from dried dulse powder. We then evaluated the hydrolysis products of two commercial enzymes, revealing that hydrolysate of Hemicellulase amano 90 contained less xylose. The effective XOS production by the enzyme was evaluated in terms of enzyme dose, DXRF concentration and reaction period, showing that 66.6% of XOS was obtained from DXRF with the hydrolysis rate of 82% under the following condition: 54 U Hemicellulase amano 90, 10 mg/ml DXRF, pH 4.5, 50 o C for 24 h. These results indicated that red algae xylan is suitable for XOS source.

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Section: Effect Of Dxrf Concentration On Xos Productionsupporting

confidence: 68%

Enzymatic production of xylooligosaccharides from red alga dulse (Palmaria sp.) wasted in Japan

Yamamoto

Kishimura

Kinoshita³

et al. 2019

Process Biochemistry

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“…Rice husk is one of the agricultural wastes obtained from rice milling process in Thailand (Khat-Udomkiri et al, 2018). The disposal of agricultural wastes by burning causes air pollution and respiratory morbidity and mortality (Arbex et al, 2012;Tipayarom & Oanh, 2007).…”

Section: Discussionmentioning

confidence: 99%

“…XOS production from rice husk was carried out according to a method previously described with some modifications (Khat-Udomkiri et al, 2018). Rice husk was soaked in 12% NaOH solution at 120°C for 45 min with a liquid to solid ratio of 1:10.…”

Section: Rice Husk Derived Xylooligosaccharides Preparation Purifimentioning

confidence: 99%

Antihyperglycemic effect of rice husk derived xylooligosaccharides in high‐fat diet and low‐dose streptozotocin‐induced type 2 diabetic rat model

Khat‐udomkiri

Toejing

Sirilun

et al. 2019

Food Science & Nutrition

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Rice husk (RH) is an agricultural waste obtained from rice milling process. Our previous study demonstrated the optimized process of extracting xylooligosaccharides (XOS), a prebiotic that can support the growth and activity of beneficial gut microbiota, from RH. Accumulated evidences indicate that the composition of gut microbiota is involved in the progression of insulin resistance and diabetes. This study aims to evaluate the antihyperglycemic effect and putative mechanisms of RH-XOS using a diabetic rat model induced by high-fat diet and streptozotocin injection. Diabetic rats were randomly assigned to receive vehicle (DMC), XOS (DM-XOS), metformin (DMM), and a combination of XOS and metformin (DMM-XOS). An additional group of rats were fed with normal diet plus vehicle (NDC) and normal diet plus XOS (ND-XOS). Supplementation with RH-XOS for 12 weeks successfully decreased the fasting plasma glucose, insulin, leptin, and LPS levels in DM-XOS compared with DMC. Likewise, the insulin-stimulated glucose uptake assessed by in vitro study was significantly enhanced in DM-XOS, DMM, and DMM-XOS. The diminished protein expressions of GLUT4 and pAkt Ser473 as well as pAMPK Thr172 were significantly modulated in DM-XOS, DMM, and DMM-XOS groups. Interestingly, RH-XOS supplementation reversed the changed gut permeability, elevated the number of beneficial bacteria, both Lactobacillus and Bifidobacterium spp., and increased SCFAs production. Taken together, the results confirm the efficacy of RH-XOS in achieving good glycemic control in diabetes by maintenance of gut microbiota and attenuation of endotoxemia.The findings reveal the benefits of RH-XOS and open an opportunity to improve its value by its development as a nutraceutical for diabetes. K E Y W O R D Santihyperglycemia, diabetes mellitus, gut microbiota, prebiotic, rice husk, xylooligosaccharides | 429 KHAT-UDOMKIRI eT Al.

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“…There are also reports that sulfite, ionic liquid, and organic solvent pretreatments provide similar effects for different biomass to produce XOS (11). As expected, xylan-rich biomass is the ideal candidate, including straw, cottonseed shell, bagasse, and corn husks (12)(13)(14). The industrial manufacture of XOS is currently produced from corn cobs due to their high amount of hemicellulose content (∼30%) (8,15).…”

Section: Introductionmentioning

confidence: 76%

The preparation technology and application of xylo-oligosaccharide as prebiotics in different fields: A review

Huang

et al. 2022

Front. Nutr.

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Xylo-oligosaccharide (XOS) is a class of functional oligosaccharides that have been demonstrated with prebiotic activity over several decades. XOS has several advantages relative to other oligosaccharide molecules, such as promoting root development as a plant regulator, a sugar supplement for people, and prebiotics to promote intestinal motility utilization health. Now, the preparation and extraction process of XOS is gradually mature, which can maximize the extraction and avoid waste. To fully understand the recent preparation and application of XOS in different areas, we summarized the various technologies for obtaining XOS (including acid hydrolysis, enzymatic hydrolysis, hydrothermal pretreatment, and alkaline extraction) and current applications of XOS, including in animal feed, human food additives, and medicine. It is hoped that this review will serve as an entry point for those looking into the prebiotic field of research, and perhaps begin to dedicate their work toward this exciting classification of bio-based molecules.

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Optimization of alkaline pretreatment and enzymatic hydrolysis for the extraction of xylooligosaccharide from rice husk

Cited by 50 publications

References 42 publications

Enzymatic production of xylooligosaccharides from red alga dulse (Palmaria sp.) wasted in Japan

Enzymatic production of xylooligosaccharides from red alga dulse (Palmaria sp.) wasted in Japan

Antihyperglycemic effect of rice husk derived xylooligosaccharides in high‐fat diet and low‐dose streptozotocin‐induced type 2 diabetic rat model

The preparation technology and application of xylo-oligosaccharide as prebiotics in different fields: A review

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