HIDEKI MATSUBAYASHI,KENJI YAMAMOTO,HIROSHI WATANABE,LEE KIAN HONG
申请号：
GB201211299
公开号：
GB2488501A
申请日:
2010.02.26
申请国别(地区):
GB
年份:
2012
代理人:
摘要：
The present invention aims to provide extracts or beverages containing 2,5-piperazinedione,3,6-bis(phenylmethyl)-,(3S,6S)-, which is a useful substance with an improving effect on learning motivation,in an easy-to-ingest form and at a high concentration. Extracts or beverages whose ratio between the content of 2,5-piperazinedione,3,6-bis(phenylmethyl)-,(3S,6S)-(unit:μg/100g)and Brix(Bx)is 6(μg/100g)/Bx or more can be ingested continuously over a long period of time as foods and beverages useful for improvement of learning motivation.
