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Growth, Proximate Composition and Pigment Production of Tetraselmis chuii Cultured with Aquaculture Wastewater

Journal of Ocean University of China 2018年第3期17卷 641-646页

作者： KHATOON Helena HARIS Haris rahman norazira abdu ZAKARIA Mimi Nadzirah BEGUM Hasina MIAN Sohel Institute of Tropical Aquaculture Universiti Malaysia Terengganu Department of Aquaculture Chittagong Veterinary and Animal Sciences University Department of Aquatic Bioscience Graduate School of Agricultural and Life Science The University of Tokyo School of Fisheries and Aquaculture Sciences Universiti Putra Malaysia Institute of Bioscience Universiti Putra Malaysia Department of Fisheries Biology & Genetics Sylhet Agricultural University

Microalgae are cultured commercially as healthy food, cosmetic products, food preservatives, and a source of valuable compounds. However, the high cost of commercial culture medium is one of the challenges to microalgal production. Therefore, it is essential to find an alternative cost-effective culture medium. Aquaculture wastewater is considered as a highly potential candidate due to its high nutrient content and large quantity generated from the rapid growth of aquaculture sector. In this study, Tetraselmis chuii cultured in different media with or without wastewater was evaluated for its growth, proximate composition and carotenoid production. The results showed that significantly(P < 0.05) higher growth(4.3 × 105 cells mL^(-1)) and protein(56.4% dry weight), lipid(44% dry weight) and carbohydrate(20% of dry weight) contents were found in T. chuii when they were cultured in the combination of both wastewater and Conway(wastewater + Conway) medium. However, carotenoid production of T. chuii was significantly increased(P < 0.05) when it was cultured in wastewater only, followed by Conway + wastewater and Conway medium only. Therefore, the incorporation of wastewater with commercial medium Convey is recommended for a cost-effective microalgae culture, as well as for the enhancement of growth and nutritional content of microalgae.

关键词： wastewater growth proximate composition Tetraselmis chuii

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