Abstract
In Japan, due to a decrease in Satsuma mandarin production and an increase in the number of citrus varieties produced, citrus extraction factories are forcing many products to be grown in small lots and other such facilities for mass production. In the juice industry, many factories are inefficiently operated. Therefore, the practical use of a juice by-product, effective use of small quantities of juice from various kinds of citrus, and the development of products that focuses on fruit functionality in regards to human health are required to improve the profitability of such factories.
