Improvement on pickled mustard fermentation process and its waste reduction
Date Issued
2007
Date
2007
Author(s)
Chiang, Pei-Dih
DOI
zh-TW
Abstract
The traditional process for manufacturing pickle mustards brings huge amount of waste with high salinity, it deeply damage the environment. Take the pickled mustards production center in Dabi township for example, the waste from the process is about 60%. According to the problems stated above, there are three objectives of this research. First, to investigate the quality of commercial product and the pickled mustards sampled from Dabi. Second, improve the manufacturing process of pickled mustards by adding salt in two stages. Third, make pickled mustards by leaf removing method and leaf slicing method in order to decrease the waste. As the results, the pH values of commercial pickled mustards range from 3.8 to 4.3, titratable acidities range from 0.9% to 1.4%, carbohydrate content range from 0.1% to 0.5%, salinities range from 2.3% to 7.9%, moisture content range from 88% to 93%, and water activities range from 0.92 to 0.94. According to the survey, the waste in the production center is about 60%. In this research, it took 10 days for the titratable acidity reaching 1% during the two stage fermentation by leaf removing method and the waste is weight 24% and 10% of raw material. Comparing with the product without removing outer leaves, the waste reductions are 30% (removing 30% of leaves) and 42% (removing 50% of leaves) respectively. On the other hand, it took 5 days for the titratable acidity reaching 1% during the two stage fermentation by leaf slicing method. The cores, slices and the waste of product by leaf slicing method account for 32 %, 15 % and 28 % of raw materials and the waste reduction is 32%. The results show that the waste percentage of both leaf removing method and leaf slicing method can reduce the waste accompany with the process.
Subjects
酸菜
廢棄物
酸菜加工作業方式
外葉剝除法
外葉切片法
pickle mustard
waste, manufacturing process of pickled mustards
leaf removing metho
leaf slicing method
SDGs
Type
thesis
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