0000000000953374
AUTHOR
Thi Thu Nguyen
Eco-extraction and encapsulation of carotenoid and anthocyanin pigments from tropical plants
This thesis deals with extraction processes using assistance technologies or green solvents and encapsulation systems of natural pigments in order to exploit and apply them in the food, cosmetic and pharmaceutical industries. In this goal, microwave-assisted extraction (MAE), ultrasonic-assisted extraction (UAE) and Ionic liquids (IL) were evaluated for the extraction of carotenoids and anthocyanins from Vietnamese plants. The results obtained show that the MAE was always a rapid and helpful system for all types of extraction tested whereas ultrasounds were particularly efficient when pigments are present on the surface of plant tissues. However, UAE was also improving results compared to c…
THÓI QUEN NGƯỜI TIÊU DÙNG VIỆT NAM VÀ VAI TRÒ CỦA THỰC PHẨM TƯƠI
This paper presents findings of a consumer survey carried out in Vietnam. the survey has been implemeted in two steps : qualitative and quantitative. The main profile of respondants are women, urban consumers, age from 24 - 39, office workers. The results provide an overall view on the criteria of choice in food buying decision. Concretely, sensorial factors like observing, touching, smelling play a very important role in food choice, more than trust on the vendor or certifcation of a third party like the Government. the consumer appreciates fresh food, assimilating to nutritional value, health and quality of the meal. However, there seems to be a generational difference between two generat…