Effect of oenological factors on the productions of β-glucosidases from wild yeasts
-
摘要: 实验考察了典型葡萄酒酿造因子糖、酸、醇对野生酵母β-葡萄糖苷酶产量的影响,以评价菌株在葡萄酒酿造条件下的应用性能。结果表明,各菌株β-葡萄糖苷酶主要定位在胞内,总酶活力以H.uvarum菌株的0.51U/mL为最高,P.fermentans菌株最小。各酿造因子对菌株产β-葡萄糖苷酶产量的影响差异较大。较高初始糖含量和低pH条件对各菌株产酶都有显著地抑制作用,其中P.fermentans菌株受抑制作用最大,在pH3.0条件下受抑制程度达到了63.50%84.32%,Saccharomyces和Hanseniaspora两属酵母受影响较小,且H.uvarum在酸性条件下的产酶量最高。较低浓度的乙醇(5%)对菌株产酶有一定的促进作用,随着乙醇含量的增加,各菌株产酶量都受到了显著抑制,P.fermentans菌株甚至没有酶的产生。综合各因子对各菌株产酶量的影响情况,H.uvarum菌株以较优表现展示出其较好的应用前景。Abstract: The main objective of this study was to investigate the potential applications of wild yeast strains by assaying the enzyme production under simulated oenological conditions. The results indicated that most β-glucosidases were intracellular activity. The highest total activity of H. uvarum was detected, 0.51U/mL. A remarkable variability in the effects of oenological factors on the production of β-glucosidase were observed among yeast strains. The significant inhibitions on the β-glucosidase productions were observed under high sugar and low pH conditions. The strongest inhibition on P. fermentans was observed, for 63.50%84.32% inhibition in comparion with control at pH 3.0, followed by Saccharomyces and Hanseniaspora. Furthermore, H. uvarum exhibited highest β-glucosidase production under the low pH conditions. Under the low concentration of alcohol (5%) , the productions of yeast β-glucosidase were increased. But the β-glucosidases production decreased with increasing the concentration of alcohol, even no β-glucosidase activity could be detected for P. fermentans strain. In conclusion, the better performances endowed H. uvarum strain some potential application.
-
Keywords:
- wine yeast /
- β-glucosidase /
- oenological factors
-
[1] Berger R G.Advances in biochemical engineering biotechnology:Biotechnology of aroma compounds[M].Berlin:Springer, 1997.
[2] Abbott N A, Coombe B G, Williams P J.The contribution of hydrolyzed flavor precursors to quality differences in shiraz juice and wines-an investigation by sensory descriptive analysis[J].American Journal of Enology and Viticulture, 1991, 42 (3) :167-174.
[3] Francis I, Sefton M, Williams P.A study by sensory descriptive analysis of the effects of oak origin, seasoning, and heating on the aromas of oak model wine extracts[J].American Journal of Enology and Viticulture, 1992, 43 (1) :23.
[4] Barbagallo R N, Spagna G, Palmeri R, et al.Selection, characterization and comparison ofβ-glucosidase from mould and yeasts employable for enological applications[J].Enzyme and Microbial Technology, 2004, 35 (1) :58-66.
[5] Liebig J, Wohler F.The composition of bitter almonds[J].Annalen, 1837, 22 (1) :1-24.
[6] Feldwisch J, Vente A, Zettl R, et al.Characterization of two membrane-associatedβ-glucosidases from maize (Zea mays L.) coleoptiles[J].Biochemical Journal, 1994, 302 (Pt 1) :15.
[7] Palmeri R, Spagna G.β-Glucosidase in cellular and acellular form for winemaking application[J].Enzyme and Microbial Technology, 2007, 40 (3) :382-389.
[8] Villena M A, Iranzo J F U', Pérez A I B.β-Glucosidase activity in wine yeasts:Application in enology[J].Enzyme and Microbial Technology, 2007, 40 (3) :420-425.
[9] McMahon H, Zoecklein B, Fugelsang K, et al.Quantification of glycosidase activities in selected yeasts and lactic acid bacteria[J].Journal of Industrial Microbiology and Biotechnology, 1999, 23 (3) :198-203.
[10] Wang Y, Li J, Xu Y.Characterization of novelβ-glucosidases with transglycosylation properties from Trichosporon asahii[J].Journal of Agricultural and Food Chemistry, 2011, 59 (20) :11219-11227.
[11] Faia A M, Ferreira A M, Climaco M C.The role of nonSaccharomyces species in releasing glycosidic bound fraction of grape aroma components-a preliminary study[J].Journal of Applied Microbiology, 2001, 91 (1) :67-71.
[12] M Gra觭a da Silveira M V S R, Maria C Loureiro-Dias, Frans M Rombouts, et al.Flow cytometric assessment of membrane integrity of ethanol-stressed Oenococcus oeni cells[J].Applied and Environmental Microbiology, 2002, 68 (12) :6087-6093.
计量
- 文章访问数: 124
- HTML全文浏览量: 12
- PDF下载量: 87