Changes in fatty acids profile, monosaccharide profile and protein content during batch growth of<i>Isochrysis galbana</i>(T.iso) - Université du Littoral Côte d'Opale Access content directly
Journal Articles Aquaculture Research Year : 2017

Changes in fatty acids profile, monosaccharide profile and protein content during batch growth ofIsochrysis galbana(T.iso)

Abstract

To investigate the nutritional value of the marine micro-alga Isochrysis galbana Tahitian Isochrysis strain (T.iso) as an alternative feed for aquaculture during culture age, its biochemical composition was studied under autotrophic and controlled culture conditions at different growth stages: exponential phase, early and late stationary phases and decay phase. Analysis showed that C14:0, C16:0, C16:1, C18:4 (n-3) and C22:6 (n-3) were the most abundant fatty acids in this alga at different growth stages. The highest values of monounsaturated fatty acids were recorded at the late stationary and the decay phases. However, the highest levels of polyunsaturated fatty acids were observed at the early stationary phase. At all growth stages, I. galbana (T.iso) contained arabinose, xylose, mannose, galactose and glucose. Glucose represented the main sugar, and its content per dry alga biomass weight increased with increasing age of the culture and reached about fourfold in the decay phase. The maximum protein content was also observed during this last phase.

Dates and versions

hal-03697136 , version 1 (20-06-2022)

Identifiers

Cite

Asma Gnouma, Irina Sadovskaya, Anissa Souissi, Khaled Sebai, Amel Medhioub, et al.. Changes in fatty acids profile, monosaccharide profile and protein content during batch growth ofIsochrysis galbana(T.iso). Aquaculture Research, 2017, 48, pp.4982 - 4990. ⟨10.1111/are.13316⟩. ⟨hal-03697136⟩
47 View
1 Download

Altmetric

Share

Gmail Facebook X LinkedIn More