Abstract The biochemical composition of 11 green, 10 brown, and 9 red seaweeds collected from Caramoan, Camarines Sur, Philippines, was measured. Total soluble carbohydrates (TSC), total phenolic content (TPC), and protein content (PC), presented as percent (%) fresh weight (FW), were measured colorimetrically. Red seaweeds had the highest TSC (0.962 ± 0.080 %), while the highest TPC (0.047 ± 0.004 %) and PC (1.783 ± 0.065 %) were noted in brown and green seaweeds, respectively. TSC was highest in Gelidiella acerosa (2.054 ± 0.098 %) and Chaetomorpha linum (1.364 ± 0.064 %). The highest TPC was recorded in Hormophysa cuneiformis (0.103 ± 0.011 %) and Padina sp. (0.102 ± 0.009 %), while the highest PC was found in Halimeda discoidea (2.768 ± 0.076 %) and Halimeda macroloba (2.694 ± 0.012 %). Fleshy seaweeds had higher TSC (0.672 ± 0.058 %) and TPC (0.042 ± 0.002 %), while calcifying seaweeds had higher PC (1.702 ± 0.052 %). PCA revealed that seaweed biochemical composition can be distinguished by their taxonomic group and functional form. Our findings suggest that seaweeds from Caramoan with good nutritive content present opportunities for further research on their potential applications for human (e.g., functional foods, nutra- and pharmaceutical importance) and non-human products (e.g., animal feeds and plant nutrition).
Sindo et al. (Wed,) studied this question.
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