设施老汉瓜采后干制技术研究
2020-09-10杜娟热比古丽·哈力克沙吾提·阿布拉江廖新福
杜娟 热比古丽·哈力克 沙吾提·阿布拉江 廖新福




摘要:以设施老汉瓜为试材,采用不同成熟度、前处理、预处理温度后进行干制,测定含水率、失重率、色差等指标变化。相同的干燥温度、时间条件下,6个成熟度、2种不同的前处理、5种预处理温度的设施老汉瓜的失重率、最终含水率、总色差值在干制期内变化不同。结果表明,不同成熟度的设施老汉瓜,干制期的预处理温度、前处理和烘制温度差距,影响老汉瓜在干制过程中水分的散失。采用不同处理方式至完全干燥,可溶性固形物含量11%的设施老汉瓜,瓜干失重率、含水率、瓜干总色差值ΔE变化略慢,较好地保持瓜干的品质,适宜于老汉瓜的加工。
关键词:设施老汉瓜;干制;预处理;温度;品质
中图分类号:S642.2 文献标志码:A doi:10.16693/j.cnki.1671-9646(X).2020.02.041
Abstract:The old mangosteen was used as the test material,and after different maturity,pre-treatment and pre-treatment temperatures,the dryness was measured,and the changes of water content,weight loss rate and color difference were measured. Under the same drying temperature and time conditions,the weight loss rate,final moisture content and total color difference of the old melons with 6 maturity,2 different pretreatments and 5 pretreatment temperatures were in the drying period. The change is different. The old mangos of different maturity facilities,during the drying process,the pretreatment temperature,pretreatment and baking temperature difference,affect the loss of water in the drying process of the old dried melon. Different treatment methods,to completely dry,soluble solid content of 11% of the old mango,the weight loss rate, moisture content,total dry color difference ΔE of the dried melon slightly slower,better to maintain the quality of the dried melon,suitable for the old man processing of melons.
Key words:facility old melon;dry;pretreatment;temperature;quality
0 引言
新疆“老汉瓜”学名为歇克甜瓜,具有柔软可口、水分多、糖度高等特点。因口感酥绵,适宜老人食用而得名[1]。“老汉瓜”属于热敏性原料的特性,以鲜销为主。其品质和口味被人们熟知和喜欢,为了开拓甜瓜的深加工技术,制作出一款全新产品。试验对设施“老汉瓜”的干制加工工艺进行初步的研究[2],得到干制的工艺参数,为大规模的机械化生产提供了重要理论依据。
1 材料与方法
1.1 試验材料
设施老汉瓜,于2019年5月22日从新疆鄯善县鲁克沁设施基地采收,为残次果;外包装采用纸箱包装。
1.2 操作要点
(1)用水反复冲洗老汉瓜表面沾附的泥土、杂物,直至彻底清洁。去皮去瓤的瓜块切成条(4~5 cm宽),均采用单层摆盘方式[3]。……
