食品安全质量检测学报
食品安全質量檢測學報
식품안전질량검측학보
FOOD SAFETY AND QUALITY DETECTION TECHNOLOGY
2015年
4期
1314-1322
,共9页
汪曙晖%汪东风%李晓东%彭正云%姜星%张续周
汪曙暉%汪東風%李曉東%彭正雲%薑星%張續週
왕서휘%왕동풍%리효동%팽정운%강성%장속주
茶叶%高纬度%种植%品质变化
茶葉%高緯度%種植%品質變化
다협%고위도%충식%품질변화
tea%high latitude%cultivation%quality change
目的:研究南茶高纬度北引后对茶类适制性及绿茶品质产生的影响。方法通过理化方法,分析同一品种茶树在高纬度北引后对其叶片厚度、鲜叶成分、不同茶类感官品质、绿茶成分及感官品质所产生的变化。结果随着纬度的增加,绿茶品质较好,而红茶品质较差;随着南茶高纬度北引,叶片厚度、氨基酸、水溶性糖、水浸出物和芳香物质(精油)总量等含量随纬度增大而增加;茶多酚含量则相反;对精油中各成分分析显示,北方茶烃类成分较多,醇类成分较少。结论本研究明确了南茶高纬度北引后茶叶品质特点及化学成分基础。
目的:研究南茶高緯度北引後對茶類適製性及綠茶品質產生的影響。方法通過理化方法,分析同一品種茶樹在高緯度北引後對其葉片厚度、鮮葉成分、不同茶類感官品質、綠茶成分及感官品質所產生的變化。結果隨著緯度的增加,綠茶品質較好,而紅茶品質較差;隨著南茶高緯度北引,葉片厚度、氨基痠、水溶性糖、水浸齣物和芳香物質(精油)總量等含量隨緯度增大而增加;茶多酚含量則相反;對精油中各成分分析顯示,北方茶烴類成分較多,醇類成分較少。結論本研究明確瞭南茶高緯度北引後茶葉品質特點及化學成分基礎。
목적:연구남다고위도북인후대다류괄제성급록다품질산생적영향。방법통과이화방법,분석동일품충다수재고위도북인후대기협편후도、선협성분、불동다류감관품질、록다성분급감관품질소산생적변화。결과수착위도적증가,록다품질교호,이홍다품질교차;수착남다고위도북인,협편후도、안기산、수용성당、수침출물화방향물질(정유)총량등함량수위도증대이증가;다다분함량칙상반;대정유중각성분분석현시,북방다경류성분교다,순류성분교소。결론본연구명학료남다고위도북인후다협품질특점급화학성분기출。
Objective To study the effect of high latitude on suitability for processing different teas and green tea quality of southern tea cultivated at northern area.Methods The tea fresh leaves from the tea plant, which was introduced from southern area and cultivated at high latitude of northern area, were made into black tea (full fermentation tea), oolong tea (semi-fermentation tea) and green tea (no fermentation tea). The main component content and quality of the tea fresh leaves and the teas were analyzed by the methods about physicochemical analysis. Results The sensory quality of green tea was the most one in the three teas with latitude increasing; the leaf thickness, amino acid, soluble sugar, water extract and total aromatic compounds (essential oils) content increased with latitude increasing, but tea polyphenol content showed the opposite. Analysis of each component of the essential oil showed that hydrocarbon constituents were much more and alcohol content was less in northern tea.Conclusion The above changes of tea functional components content are the basis of chemical composition of north tea quality characteristics from south tea cultivated at high north latitude.