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<p>The present study investigates the amino acid composition of three freshwater crab species, viz., <i>Maydelliathelphusa masoniana</i>, <i>Himalayapotamon emphyseteum</i> and <i>Himalayapotamon pretzmanni</i>, collected from Himalayan rivers, with a focus on essential (EAAs) and non-essential amino acids (NEAAs). All species exhibited comparable trends in amino acid distribution with species-specific variations. One-way ANOVA revealed statistically significant differences in amino acid profiles among the species (<i>p</i> &lt; 0.05), and Tukey’s pairwise comparison test identified species-specific variations in several amino acids. Among EAAs, <i>H. pretzmanni</i> showed the highest overall content, followed by <i>H. emphyseteum</i> and <i>M. masoniana</i>, suggesting a superior nutritional profile in <i>H. pretzmanni</i>. Leucine and histidine were consistently abundant across all species, while methionine and tryptophan remained low. The highest variation was observed in threonine concentration. Among NEAAs, glutamic and aspartic acid were most abundant, with <i>M. masoniana</i> exhibiting the highest NEAA content. Heatmap analysis revealed significant interspecific differences in glutamine, glycine, and serine levels, potentially reflecting differences in diet, metabolism, and habitat. These findings highlight the nutritional value of Himalayan river crabs and suggest potential applications in nutraceutical and pharmaceutical fields.</p>

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Assessment of Amino Acid Profile of Freshwater Crabs from Western Himalayas for Dietary Sustainability

  • 期刊论文

  • 发表日期：

    2026年4月9日

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  • Mukul Adotra,
  • Menakshi Dhar,
  • Seema Langer,
  • Shivam Koul

摘要

The present study investigates the amino acid composition of three freshwater crab species, viz., Maydelliathelphusa masoniana, Himalayapotamon emphyseteum and Himalayapotamon pretzmanni, collected from Himalayan rivers, with a focus on essential (EAAs) and non-essential amino acids (NEAAs). All species exhibited comparable trends in amino acid distribution with species-specific variations. One-way ANOVA revealed statistically significant differences in amino acid profiles among the species (p < 0.05), and Tukey’s pairwise comparison test identified species-specific variations in several amino acids. Among EAAs, H. pretzmanni showed the highest overall content, followed by H. emphyseteum and M. masoniana, suggesting a superior nutritional profile in H. pretzmanni. Leucine and histidine were consistently abundant across all species, while methionine and tryptophan remained low. The highest variation was observed in threonine concentration. Among NEAAs, glutamic and aspartic acid were most abundant, with M. masoniana exhibiting the highest NEAA content. Heatmap analysis revealed significant interspecific differences in glutamine, glycine, and serine levels, potentially reflecting differences in diet, metabolism, and habitat. These findings highlight the nutritional value of Himalayan river crabs and suggest potential applications in nutraceutical and pharmaceutical fields.