• Title/Summary/Keyword: tartary buckwheat

Search Result 66, Processing Time 0.049 seconds

Influence of Extrusion on Dietary Fiber Profile and Bioactive Compound in Different Parts of Tatary Buckwheat (Fagopyrum tataricum) (쓴메밀의 서로 다른 부위에서 압출성형이 식이섬유 및 생리활성물질의 함량에 미치는 영향)

  • Kim, Dong-Eun;Hong, Soon-Yeol;Kang, Wie-Soo;Yu, Chang-Yeon;Lee, Beom-Goo;Chung, Ill-Min;Lim, Jung-Dae
    • Korean Journal of Medicinal Crop Science
    • /
    • v.17 no.6
    • /
    • pp.379-387
    • /
    • 2009

  • The aim of this investigation was to examine the influence of extrusion on dietary fiber profile and the content of bioactive compounds, rutin and quercetin in young sprout, whole seed, and matured stem of Tartary buckwheat. WSI(water soluble index) is increased by a function of both screw profile and process temperature, compared to control in different parts of Buckwheat. Also, WSI of ME is increased more than 5.2 times in grain, compared to that of control. The effect of precooking by extrusion on the dietary fiber profile of buckwheat flour was evaluated. Precooking by extrusion significantly increased SDF in flour, although in most cases extrusion decrease in TDF a little. The thermo-mechanical treatment undergone by the buckwheat flour during extrusion led to redistribute part IDF fraction to SDF, leading to an increase in the latter. The content of rutin was increased about two fold in extruded flour of sprout, compared to in control. This increase maybe why these compounds are released from cell wall by high shear processing under high temperature.

  • PDF KSCI

Comparison and validation of rutin and quercetin contents according to the extraction method of tartary Buckwheat (Fagopyrum tataricum Gaertn.) (쓴메밀 종자의 추출방법에 따른 루틴 및 퀘세틴 함량 비교)

  • Kim, Su Jeong;Sohn, Hwang Bae;Kim, Geum Hee;Lee, Yu Young;Hong, Su Young;Kim, Ki Deog;Nam, Jeong Hwan;Chang, Dong Chil;Suh, Jong Taek;Koo, Bon Cheol;Kim, Yul Ho
    • Korean Journal of Food Science and Technology
    • /
    • v.49 no.3
    • /
    • pp.258-264
    • /
    • 2017

  • The stability and accuracy of ultra-performance liquid chromatography (UPLC) used for evaluating the contents of rutin and quercetin in tartary buckwheat (Fagopyrum tataricum Gaertn.) seeds extracted by seven different extraction methods were determined. The seven extraction methods were reflux extraction (RE), ultra-sonification extraction (UE), stirrer extraction (SE), RE after UE (UE+RE), RE after SE (SE+RE), UE after SE (SE+UE), and RE with UE after SE (SE+UE+RE). Among the seven extraction methods used, RE yielded comparatively higher contents of rutin (2,277 mg/ 100 g) and quercetin (158 mg/100 g) than those yielded by other six extraction methods. The intra-day repeatability and inter-day precision of RE was 0.4-3.2% considering relative standard deviation (RSD), while accuracy was 88.8-102.4%. Therefore, RE with UPLC would be a rapid, accurate, and stable method for analyzing rutin and quercetin contents in tartary buckwheat.

  • https://doi.org/10.9721/KJFST.2017.49.3.258 인용 PDF KSCI

Bioconversion of Rutin in Tartary Buckwheat by the Korean Indigenous Probiotics (한국형 프로바이오틱스에 의한 쓴메밀 내 rutin의 생물전환)

  • Chang Kwon;Jong Won Kim;Young Kwang Park;Seungbeom Kang;Myung Jun Chung;Su Jeong Kim;Sanghyun Lim
    • Microbiology and Biotechnology Letters
    • /
    • v.51 no.1
    • /
    • pp.83-92
    • /
    • 2023

  • In this study, bioconversion of rutin to quercetin was confirmed by the fermentation of Korean indigenous probiotics and tartary buckwheat. Based on whole genome sequencing of 17 probiotics species, α-rhamnosidase, related to bioconversion of isoquercetin (quercetin 3-β-D glucoside) from rutin, is identified in the genome of CBT BG7, LC5, LR5, LP3, LA1, and LGA1. β-Glucosidase, related to bioconversion of isoquercetin to quercetin, is identified in the genome of all 17 species. Among the 17 probiotics species, 6 probiotics including CBT BG7, LR5, LP3, LA1, LGA1 and ST3 performed the bioconversion of rutin to quercetin up to 21.5 ± 0.3% at 7 days after fermentation. The fermentation of each probiotics together with enzyme complex Cellulase KN® was conducted to reduce the time of bioconversion. As a result, CBT LA1 which showed the highest yield of bioconversion of 21.5 ± 0.3% when the enzyme complex was not added showed high bioconversion yield of 84.6 ± 0.5% with adding the enzyme complex at 1 day after fermentation. In particular, CBT ST3 (96.2 ± 0.4%), SL6 (90.1 ± 1.4%) and LP3 (90.0 ± 0.4%) showed high yield of bioconversion more than 90%. In addition, such probiotics including high levels in quercetin indicated the inhibitory effects of NO production in LPS-induced RAW264.7 cells. In this study, we confirmed that the fermentation of Korean indigenous probiotics and enzyme complex together with roasted tartary buckwheat increased the content of quercetin and reduced the time of bioconversion of rutin to quercetin which is a bioactive compound related to anti-inflammatory, antioxidants, anti-obesity, and anti-diabetes.

  • https://doi.org/10.48022/mbl.2302.02004 인용 PDF