贾凤娟 弓志青 李永生 崔文甲 王延圣 王文亮

摘要：章丘鲍芹因产自章丘而得名，具有芹香浓郁、青翠碧绿、无筋爽脆的特点。本研究以常见芹菜品种西芹为对照，研究不同干燥处理——热风干燥和真空冷冻干燥，对章丘鲍芹茎、叶中水分、灰分、脂肪、蛋白质、膳食纤维、碳水化合物、黄酮类化合物的含量及冷冻干燥下氨基酸含量的影响。结果表明，真空冷冻干燥技术较热风干燥技术能更好地保持章丘鲍芹的性状和营养；与西芹相比，章丘鲍芹具有更高的营养价值，且多种营养成分叶中的含量高于茎中。本研究旨在为章丘鲍芹的深加工和综合利用提供基础参考，为进一步提升其附加值提供理论依据。

关键词：章丘鲍芹；西芹；真空冷冻干燥；热风干燥；营养成分

中图分类号：S636.309 文献标识号：A 文章编号：1001-4942（2018）09-0139-04

Abstract Zhangqiu Baoqin is named for its producing area， Zhangqiu， with characteristics of full-bodied fragrance， jade green color， tasting brittle without tendon and much higher price than ordinary celery. In this study， the common celery was used as a control， the contents of water， ash， fat， protein， dietary fiber， carbohydrates， flavonoids and amino acids in stems and leaves of Zhangqiu Baoqin were determined by hot air drying and vacuum freeze drying. The results showed that vacuum freeze drying technology was better than hot air drying technology in maintaining the properties and nutrition of Baoqin. Baoqin had higher nutritive value than celery， and various nutrient components in leaves were higher than that of in stems. This study aimed to provide a basis for the deep processing and comprehensive utilization of Zhangqiu Baoqin， and further enhance the added value of Baoqin products.

Keywords Zhangqiu Baoqin； Celery； Vacuum freeze drying； Hot air drying； Nutrient component

芹菜营养丰富，含有大量的维生素A、维生素B2、维生素C、K、Ca、Mg、Fe、Mn、Zn、Cu，还有大量包括人体必需的8种氨基酸在内的氨基酸[1，2]。山东地区芹菜种植有着很长的历史，且种类繁多，水芹、旱芹和西芹都是主栽品种。章丘鲍芹产自山东省济南市章丘区鲍家村，其茎外观与西芹茎相比更为圆润，无明显丝状棱角；体型普遍高大均匀，形态良好者株高1 m左右；根系发达且茂盛；叶片色泽墨绿，菜茎色泽呈现翠绿色；经烹调入口清脆微甜，咀嚼后无纤维丝渣，实心无筋，具有浓郁的特殊芹菜芳香，口感和质地较优，是烹饪的优等原料[3-5]。

干燥的意义在于将食材中的水分降低到一定水平后达到加工、贮藏、运输等目的[6]。……