食品研究与开发
食品研究與開髮
식품연구여개발
FOOD RESEARCH AND CEVELOPMENT
2013年
14期
110-113
,共4页
郑玉忠%陈贵豪%叶静鹏%郑莉%张振霞
鄭玉忠%陳貴豪%葉靜鵬%鄭莉%張振霞
정옥충%진귀호%협정붕%정리%장진하
淮山%姜薯%参薯%理化性质%营养品质
淮山%薑藷%參藷%理化性質%營養品質
회산%강서%삼서%이화성질%영양품질
Dioscorea opposita Thunb.%Dioscorea alata L.%Dioscorea alata L. var. purpurea(Roxb.) M. Pouch%physicochemical property%nutritional quality
淮山(Dioscorea opposita Thunb.)、姜薯(Dioscorea alata L.)、参薯(Dioscorea alata L. var. purpurea(Roxb.) M. Pouch)同为薯蓣科植物中常见的药食两用植物,在粤东地区有广泛的种植与应用。为了比较这3种薯蓣在营养品质上的差异,本研究采用国家标准食品检测法对它们食用部位的多个理化性质进行测定,包括水分、还原糖、淀粉、可溶性总糖、粗脂肪、粗蛋白质、VC、多酚类物质、黄酮类物质以及多酚氧化酶活性等10个指标。结果表明3种薯蓣主要由糖类物质、蛋白质以及少量脂肪构成,干物质中淀粉占很高比例。三者的营养品质存在一定的差异。从干物质方面来看,淮山>姜薯>参薯,其中,淮山含有的淀粉、可溶性总糖、粗脂肪的含量比另外两种高;在粗蛋白含量方面,姜薯>参薯>淮山。同时本文还检测了多酚类物质、黄酮类物质、VC等的含量以及多酚氧化酶的酶活力,参薯的均高于其他两种。从总体上看,这3种薯蓣均具备良好的营养价值,其中姜薯部分营养价值以及抗氧化活性等药用价值方面均优于淮山和参薯。这表明姜薯是一种具有良好开发前景的植物资源。
淮山(Dioscorea opposita Thunb.)、薑藷(Dioscorea alata L.)、參藷(Dioscorea alata L. var. purpurea(Roxb.) M. Pouch)同為藷蕷科植物中常見的藥食兩用植物,在粵東地區有廣汎的種植與應用。為瞭比較這3種藷蕷在營養品質上的差異,本研究採用國傢標準食品檢測法對它們食用部位的多箇理化性質進行測定,包括水分、還原糖、澱粉、可溶性總糖、粗脂肪、粗蛋白質、VC、多酚類物質、黃酮類物質以及多酚氧化酶活性等10箇指標。結果錶明3種藷蕷主要由糖類物質、蛋白質以及少量脂肪構成,榦物質中澱粉佔很高比例。三者的營養品質存在一定的差異。從榦物質方麵來看,淮山>薑藷>參藷,其中,淮山含有的澱粉、可溶性總糖、粗脂肪的含量比另外兩種高;在粗蛋白含量方麵,薑藷>參藷>淮山。同時本文還檢測瞭多酚類物質、黃酮類物質、VC等的含量以及多酚氧化酶的酶活力,參藷的均高于其他兩種。從總體上看,這3種藷蕷均具備良好的營養價值,其中薑藷部分營養價值以及抗氧化活性等藥用價值方麵均優于淮山和參藷。這錶明薑藷是一種具有良好開髮前景的植物資源。
회산(Dioscorea opposita Thunb.)、강서(Dioscorea alata L.)、삼서(Dioscorea alata L. var. purpurea(Roxb.) M. Pouch)동위서여과식물중상견적약식량용식물,재월동지구유엄범적충식여응용。위료비교저3충서여재영양품질상적차이,본연구채용국가표준식품검측법대타문식용부위적다개이화성질진행측정,포괄수분、환원당、정분、가용성총당、조지방、조단백질、VC、다분류물질、황동류물질이급다분양화매활성등10개지표。결과표명3충서여주요유당류물질、단백질이급소량지방구성,간물질중정분점흔고비례。삼자적영양품질존재일정적차이。종간물질방면래간,회산>강서>삼서,기중,회산함유적정분、가용성총당、조지방적함량비령외량충고;재조단백함량방면,강서>삼서>회산。동시본문환검측료다분류물질、황동류물질、VC등적함량이급다분양화매적매활력,삼서적균고우기타량충。종총체상간,저3충서여균구비량호적영양개치,기중강서부분영양개치이급항양화활성등약용개치방면균우우회산화삼서。저표명강서시일충구유량호개발전경적식물자원。
Dioscorea opposita Thunb., Dioscorea alata L. and Dioscorea alata L. var. purpurea (Roxb.) M. Pouch are the popular medicine and food dual-purpose plants in Eastern Guangdong. In order to reveal the difference of nutritional quality, several physicochemical properties of three Dioscorea were tested according to National Standards for food detection method, including the content of tissue water, reducing sugar, starch, soluble sugar, crude fat, crude protein, vitamin C, polyphenols, flavonoids substances and the enzyme activity of polyphenol oxidase. The results showed that there were some differences in nutritional quality of three Dioscorea. In dry weight, D. alata L.>D. var. purpurea (Roxb.) M. Pouch>D. opposita Thunb.;furthermore, the content of starch, soluble sugar and crude fat of D. opposita Thunb were more than that of other Dioscorea. In crude protein, D. opposita Thunb.> D. alata L.>D. var. purpurea (Roxb.) M. Pouch. At the same time, the vitamin C, polyphenols, flavonoids and the enzyme activity of polyphenol oxidase of D. alata L. were higher than the others. The results indicated that both the nutritional quality and medicinal value of D. alata L. was better than two other Dioscorea. Base on these lines of evidence, D. alata L. was a promising medicine and food dual-purpose plant.