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Effect of packaging to quality and shelf life of fresh sea grapes (Caulerpa lentillifera J.Agardh, 1837)

The results showed that while the shelf life of sea grapes preserved in PVC was only 2 days, that in PA, PP were up to 10 days. Moreover, the weight loss, the rate of damage and total aerobic microorganisms of grape seaweeds preserved in PA were lower than that in PP. This means that suitable packaging will help to maintain the quality and extend the shelf life of fresh sea grapes. | Journal of Fisheries science and Technology No.3 - 2016 EFFECT OF PACKAGING TO QUALITY AND SHELF-LIFE OF FRESH SEA GRAPES (CAULERPA LENTILLIFERA J.AGARDH, 1837) Le Thi Tuong1, Nguyen Thi My Trang1, Vu Ngoc Boi1, Nguyen Huu Dai2 Received: 23/8/2016; Revised: 20/9/2016; Accepted: 26/9/2016 ABSTRACT Fresh sea grapes are succulent, soft, loose and easily perishable by environmental factors. The purpose of this study was to determine the type of packaging which is suitable for preserving fresh sea grapes. Three types of packaging, namely Polyamide (PA), Polypropylene (PP) and polyvinyl chloride (PVC) were used to research. The results showed that while the shelf-life of sea grapes preserved in PVC was only 2 days, that in PA, PP were up to 10 days. Moreover, the weight loss, the rate of damage and total aerobic microorganisms of grape seaweeds preserved in PA were lower than that in PP. This means that suitable packaging will help to maintain the quality and extend the shelf life of fresh sea grapes. Keywords: Sea grapes, shelf-life I. INTRODUCTION Sea grapes (Caulerpa lentillifera, J.Agardh, 1837) is a seaweed belonging to species of Caulerpa. They wereinternationally documented since the 70s of the 16th century. They fully contain essential nutrients, including fiber, vitamins, amino acids, minerals and bioactive compounds which can be seen as a potential food. Sea grapes, nowadays, are significantly cultured, growth and processed in many countries such as Japan, China, Korea, India and the Philippines [8, 9, 10, 11, 12, 13]. In Vietnam, sea grapes were known in the early years of the 20th century. There had been certain successful aquaculture research in coastal areas in Khanh Hoa, Binh Thuan and Phu Yen provinces [3]. The estimated capacity reached up to 100 tons of fresh seaweed per year in 2002. However, the characteristics of sea grapes are succulent, soft-loose so immuno ability and stability are low. Sea grapes are easily perishable under room temperature .