Methionine and glycine stabilize mitochondrial activity in sake yeast during ethanol fermentation

Addition of amino acids to fermentation media affects the growth and brewing profiles of yeast. In addition, retaining mitochondrial activity during fermentation is critical for the fermentation profiles of brewer’s yeasts. However, a concrete mechanism linking amino acids in fermentation media with...

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Permalink: http://skupnikatalog.nsk.hr/Record/nsk.NSK01001065318/Details
Matična publikacija: Food technology and biotechnology (Online)
57 (2019), 4 ; str. 535-543
Glavni autori: Jannatul, Ferdouse (Author), Kusaba, Yuki, Fujimaru, Yuki, Yamamoto, Yuki, Kitagaki, Hiroshi
Vrsta građe: e-članak
Jezik: eng
Predmet:
Online pristup: https://doi.org/10.17113/ftb.57.04.19.5665
Hrčak
Food technology and biotechnology (Online)
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024 7 |2 doi  |a 10.17113/ftb.57.04.19.5665 
035 |a (HR-ZaNSK)001065318 
040 |a HR-ZaNSK  |b hrv  |c HR-ZaNSK  |e ppiak 
041 0 |a eng  |b eng  |b hrv 
042 |a croatica 
044 |a ci  |c hr 
080 1 |a 663  |2 2011 
100 1 |a Jannatul, Ferdouse  |4 aut  |9 HR-ZaNSK 
245 1 0 |a Methionine and glycine stabilize mitochondrial activity in sake yeast during ethanol fermentation  |h [Elektronička građa] /  |c Ferdouse Jannatul, Yuki Kusaba, Yuki Fujimaru, Yuki Yamamoto, Hiroshi Kitagaki. 
300 |b Graf. prikazi. 
504 |a Bibliografija: 44 jed. 
504 |a Summary ; Sažetak. 
520 |a Addition of amino acids to fermentation media affects the growth and brewing profiles of yeast. In addition, retaining mitochondrial activity during fermentation is critical for the fermentation profiles of brewer’s yeasts. However, a concrete mechanism linking amino acids in fermentation media with mitochondrial activity during fermentation of brewer’s yeasts is yet unknown. Here, we report that amino acids in fermentation media, especially methionine (Met) and glycine (Gly), stabilize mitochondrial activity during fermentation of sake yeast. By utilizing atg32Δ mutant sake yeast, which shows deteriorated mitochondrial activity, we screened candidate amino acids that strengthened the mitochondrial activity of sake yeast during fermentation. We identified Met and Gly as candidate amino acids that fortify mitochondrial activity in sake yeast during fermentation. To confirm this biochemically, we measured reactive oxygen species (ROS) levels in sake yeast fermented with Met and Gly. Yeast cells supplemented with Met and Gly retained high ROS levels relative to the non-supplemented sake yeast. Moreover, Met-supplemented cells showed a metabolome distinct from that of non-supplemented cells. These results indicate that specific amino acids such as Met and Gly stabilize the mitochondrial activity of sake yeast during fermentation and thus manipulate brewing profiles of yeast. 
520 |a Dodatak aminokiselina u fermentacijsku podlogu utječe na rast i aktivnost kvasca, a zadržavanje aktivnosti mitohondrija tijekom alkoholnog vrenja je kritično za aktivnost pivskog kvasca. Međutim, mehanizam djelovanja aminokiselina u fermentacijskoj podlozi i njihov utjecaj na aktivnost mitohondrija pivskog kvasca tijekom vrenja još uvijek nije poznat. U ovom radu smo utvrdili da aminokiseline u fermentacijskoj podlozi, osobito metionin i glicin, stabiliziraju aktivnost mitohondrija kvasca tijekom proizvodnje pića sake. Pomoću mutanta atg32△, koji ima narušenu aktivnost mitohondrija, istražili smo aminokiseline koje povećavaju aktivnost mitohondrija kvasca tijekom vrenja. Identificirali smo metionin i glicin kao aminokiseline koje bi mogle povećati aktivnost mitohondrija kvasca tijekom proizvodnje pića sake. Da bismo to potvrdili, izmjerili smo količinu reaktivnih oblika kisika u kvascu nakon vrenja u podlozi s metioninom i glicinom. Kvasac koji je fermentirao u podlozi s metioninom i glicinom zadržao je relativno veliku količinu reaktivnih oblika kisika u usporedbi s kvascem koji je fermentirao u podlozi bez dodatka aminokiselina. 
653 0 |a Kvasac  |a Sake  |a Etanol  |a Vrenje  |a Aminokiseline  |a Mitohondriji 
700 1 |a Kusaba, Yuki  |4 aut  |9 HR-ZaNSK 
700 1 |a Fujimaru, Yuki  |4 aut  |9 HR-ZaNSK 
700 1 |a Yamamoto, Yuki  |4 aut  |9 HR-ZaNSK 
700 1 |a Kitagaki, Hiroshi  |4 aut  |9 HR-ZaNSK 
773 0 |t Food technology and biotechnology (Online)  |x 1334-2606  |g 57 (2019), 4 ; str. 535-543  |w nsk.(HR-ZaNSK)000484955 
981 |b Be2019  |b B03/19 
998 |b dalo2006 
856 4 0 |u https://doi.org/10.17113/ftb.57.04.19.5665 
856 4 0 |u https://hrcak.srce.hr/233425  |y Hrčak 
856 4 0 |u https://www.ftb.com.hr/images/pdfarticles/2019/October-December/FTB-4-57-535.pdf  |y Food technology and biotechnology (Online) 
856 4 1 |y Digitalna.nsk.hr