电场对橡木桶陈酿白兰地中多酚类物质的影响  

Effect of Electric Field on Phenol Compounds of Brandy Aging in Oak Barrels

作　　者：张斌[1] 曾新安[1,2] 杨华峰[1] 薛子光 阳梅芳[1] 

机构地区：[1]华南理工大学轻工与食品学院,广东广州510640 [2]广东省天然产物绿色加工与产品安全重点实验室,广东广州510640 [3]广东祯州集团有限公司,广东惠州516001

出　　处：《华南理工大学学报（自然科学版）》2012年第5期145-148,154,共5页Journal of South China University of Technology(Natural Science Edition)

基　　金：广东省教育部产学研重点项目(2010A090200036);广东省国际合作项目(2009B050400003)

摘　　要：为了加快白兰地在橡木桶中的物化反应,缩短陈酿周期,采用电场强化技术对橡木桶进行处理,研究了电场对贮存在不同容积橡木桶中的白兰地酒进行强化处理过程中多酚类物质的含量变化.发现电场处理样的单宁及总酚含量都明显高于同期同容积自然陈酿样,5L橡木桶中,电场处理样陈酿12个月时的单宁、总酚、香草醛、丁香醛、没食子酸及原儿茶酸含量比同期的自然陈酿样分别提高了54.6%、9.6%、47.1%、7.1%、19.4%、23.1%,而在2 L橡木桶中,含量分别高了46.9%、9.1%、46.3%、14.3%、19.4%、34.5%.结果表明,电场直接处理橡木桶可以明显促进白兰地对橡木中多酚类物质的提取,提高白兰地品质.In order to accelerate the physical and chemical reactions and shorten the aging process of brandy,oak barrels with different volumes were treated with electric field for 12 months,and the content changes of phenol compounds in the brandy stored in the oak barrels were investigated.The results show that,after the electric field treatment,the contents of tannins and total phenols are both significantly higher than those in the untreated samples,and that the contents of tannins,total phenols,vanillin,syringaldehyde,gallic acid and protocatechuic acid in the treated brandy are respectively 54.6%,9.6%,47.1%,7.1%,19.4% and 23.1% higher than those in the control in 5 L oak barrels,and are respectively 46.9%,9.1%,46.3%,14.3%,19.4% and 34.5% higher than those in the control in 2 L oak barrels.It is thus concluded that electric field treatment helps to enhance the extraction of phenol compounds from oak barrels and to improve the quality of final brandy.

关 键 词：白兰地 橡木桶 电场 酚类物质 

分 类 号：TS262.6[轻工技术与工程—发酵工程]