An investigation on the neutraceutical aspects of the Kappaphycus alvarezii

  • Bharat university
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Chemical constituents such as heavy metals, lipids, phenol, vitamins, carrageenan, carbohydrates, antioxidants were estimated from Kappaphycus sp. From the studies, it was observed that the carbohydrate available in Kappaphycus sp. is 2.67 gm/100gm. Antioxidant potential of the red algae (Kappaphycus alvarezi) was determined by estimation of vitamin C, vitamin E, selenium and magnesium. The compositions of vitamin C, vitamin E, selenium and magnesium were found to be 0.123gm, 0.243gm, 0.0012gm, 0.0245gm per 100 gm respectively. It was noted that Kappaphycus is exhibited more antioxidant against vitamin E and magnesium. It was observed that total amount of the heavy metals is 30.4ppm. Iodine is the major constituent (56.77ppm) then boron (6.66ppm) and lead (3.45ppm) and nickel (2.43ppm). The composition of cobalt is 1.56ppm, mercury is 1.44ppm and cadmium is 1.02ppm. Very less amount of metals are arsenic (0.897ppm) and tin (0.89 ppm). The total lipid content was observed to be 1.09gms/100gms. The total protein content is as high as 18.78gm/100gm compared to all other substances. From study of vitamins, it was observed that the quantity of vitamin A is 1355.6 IU. Folic acid content is 1.22μg and choline is 0.676μg. Vitamins B1, B2, B3 and B6 are present in lesser quantity. B5 and B12 were observed to be in traces. Fat content in the species are found to be 1.09gm/100gm. Total phenol content is observed to be 4.565gm/100mg. Further, it was observed that the phenolic content is very much less than proteins and it is more than carbohydrates, lipids and fats. Carrageenan content is estimated as 1.095gm/100gm in the species. From the overall study, it can be concluded that the species can serve as functional food with vital nutritional and biological values.

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... Further, it is a powerful antioxidant and participates in many physiological processes. The presence of vitamin C is required for the process of collagen production in the body (Rajasulochana & Krishnamoorthy, 2013;Suychinov et al., 2019). In the case of other tested vitamins, a slight increase was reported in the concentration of vitamin B6, B2, B12, PP, and A, but these are not statistically different than the control without bean flours. ...
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Fatty acids and sterols of gametophytes and sporophytes of Chondrus crispus were isolated and identified. Although chemical variation in the proportions of other natural compounds (eg. different carrageenan type) between gametophytes and sporophytes has already been observed, this is the first comparative study of the lipid composition in both generations. The content of fatty acids and sterols in gametophytes (0.710 and 0.190 mg g-1 dry weight respectively) was higher than in sporophytes (0.622 and 0.113 mg g-1 dry weight). The main fatty acids were palmitic, palmitoleic, oleic, arachidonic and eicosapentaenoic acids. These five fatty acids represented more than 78% of the all fatty acid composition in both generations. In addition unsaturated fatty acids were present in a much greater quantity (>80%) than saturated fatty acids. However, differences in the distribution of fatty acids between the two generations were observed. Gametophytes demonstrated higher amounts of monounsaturated fatty acids while sporophytes had a relatively higher content of saturated and polyunsaturated fatty acids. The major sterol in both generations was cholesterol (>94%). Differences were also observed in the sterol distribution between gametophytes and sporophytes, the former containing smaller amounts of 7-dehydrocholesterol and stigmasterol, while the latter had smaller amounts of 22-dehydrocholesterol, campesterol and sitosterol. Gametophytes were lacking 24-methylenecholesterol. Fatty acids and sterol of algal class, families and sometimes even species are characteristic to those particular taxa, and could be useful as chemotaxonomic markers. The results of this study showed that intra-specific variation in algae can be occured.
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