玫瑰花保藏方法与精油得率关系的研究

根据实际条件对玫瑰花的保藏方法进行了研究,寻找出了几种有效的保藏方法.包装袋A保藏玫瑰花,温度变化小,花香、花色好,是一种既经济又简便易行的短时间保藏玫瑰花的好方法,可保藏24 h;室内摊放,散热好、玫瑰花不发热,在放置6 h后因后熟作用,出油率比立即提取提高20%,但随着时间的延长,香气不断向空气中散失,出油率下降,所以室内摊放保藏鲜花时间不宜过长,最好不要超过6 h;冷冻能长时间地保藏玫瑰花,出油率亦不受影响;盐渍可以较长时间地保藏玫瑰花,15%的加盐量效果较好.

STUDY ON RELATIONSHIP BETWEEN THE PRESERVATION METHOD OF ROSE FLOWERS AND THE YIELD OF ESSENTIAL OIL

A methodological study was carried out on the preservation of rose flowers.Several methods were tested (according) to practical conditions.It was found that preservation of rose flowers within a short period in package bags was an economic and practical method with advantages of narrow changes of temperature,smell and color,it could preserve rose flowers as long as 24 h.Spreading fresh flowers on the indoor concrete floor is also a suitable way,by which the temperature of the flowers does not increase.The yield of essential oil could be increased by 20% after the flowers were spread for 6 h due to post-rippening effect.However,the yield decreased after 6 h spreading due to the emanation of essential oil into air.Refrigerated flowers can also be stored for a long time without change of essential oil yield.Salt-impregnated flowers can be preserved for a long time.The suitable salt dosage is 15% of the weight of flowers.