Phytochemical composition, in vitro antioxidant, antibacterial potential and GC-MS analysis of red seaweeds (Gracilaria corticata and Gracilaria edulis) from Palk Bay, India

Arulkumar, Abimannan; Rosemary, Thomas; Paramasivam, S.; Ramaswamy, Babu Rajendran

doi:10.1016/j.bcab.2018.05.008

Cited by 75 publications

(39 citation statements)

References 36 publications

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“…Methanolic extraction of C. racemosa samples yielded an average of 26.6% crude extract of the total biomass. As a solvent of aqueous polarity, methanol was used to extract the seaweed collected from fish ponds in order to optimize the extraction of phenolics that contributes an essential role as an antioxidant agent [ 62 , 63 ]. The antioxidative potential of seaweed extracts are well exhibited and different extraction solvents are known to contribute to varying antioxidant properties [ 16 , 64 ].…”

Section: Resultsmentioning

confidence: 99%

Bioprospecting Cultivated Tropical Green Algae, Caulerpa racemosa (Forsskal) J. Agardh: A Perspective on Nutritional Properties, Antioxidative Capacity and Anti-Diabetic Potential

Aroyehun

Razak

Palaniveloo

et al. 2020

Foods

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Caulerpa racemosa (Forsskal) J. Agardh is a green seaweed used as food and folk medicine since ancient times in the Indo-Pacific region, particularly in southeast Asia. In this study, the proximate nutrient composition, phytochemical, anti-oxidant and anti-diabetic properties of sea grape C. racemosa collected from culture fishponds in Johor, Malaysia were analysed. The contents (dry weight basis) of carbohydrate, crude protein, crude lipids, ash and caloric value obtained were 33.42 ± 1.34%, 20.27 ± 0.14%, 4.20 ± 0.32%, 28.25 ± 0.27% and 2544.67 ± 7.04 cal g−1, respectively. The amino acid score (AAs) and biological protein value (213.43 mg g−1) indicated that C. racemosa presented a better protein quality. The most abundant fatty acids were C16:0 (palmitic acid: 63.27%), followed by C18:1 (oleic acid: 5.80%), and C18:2 ῳ6 (linoleic acid: 5.33%). The analysis of the ash content indicated that essential minerals and trace elements, such as Ca, Fe, and Mn, were present in the seaweed. The total phenolic content (TPC) and total flavonoid content (TFC) observed in the ethyl acetate extract were 17.88 ± 0.78 mg GAE g−1 and 59.43 ± 2.45 mg QE g−1, respectively. The ethyl acetate extract of C. racemosa demonstrated notable anti-diabetic activity in diabetic induced rats. The low (100 mg kg−1) and high (200 mg kg−1) doses of cultivated C. racemosa extract exhibited a significant decrease (p < 0.05) in blood glucose levels while preventing weight loss, reducing plasma AST, ALT levels as a sign of hepatoprotective effect and recording albumin levels similar to positive control in diabetic induced rats. The results support the usefulness of cultivated C. racemosa as a potential functional food.

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Section: Resultsmentioning

confidence: 99%

Bioprospecting Cultivated Tropical Green Algae, Caulerpa racemosa (Forsskal) J. Agardh: A Perspective on Nutritional Properties, Antioxidative Capacity and Anti-Diabetic Potential

Aroyehun

Razak

Palaniveloo

et al. 2020

Foods

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“…Both G. edulis and G. corticata are commercially important and commonly edible seaweeds in India. These two algae exhibited in a previous work high biological activities (proximate composition, antioxidant, antibacterial, and biopreservative effects in seafoods during preservation and extended shelf life than other Gracilaria species in a previous work [18]. Thus, the present study sought to evaluate and compare the chemical composition (proximate composition, lipid profile, amino acids, vitamins and pigments such as chlorophyll and carotenoids) and physicochemical properties of both, Gracilaria corticata and Gracilaria edulis from the Thondi coast of Palk Bay, southeast India.…”

Section: Introductionmentioning

confidence: 94%

Biochemical, Micronutrient and Physicochemical Properties of the Dried Red Seaweeds Gracilaria edulis and Gracilaria corticata

et al. 2019

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The present study sought to evaluate the nutritional composition and physicochemical properties of two dried commercially interesting edible red seaweeds, Gracilaria corticata and G. edulis. Proximate composition of the dried seaweeds revealed a higher content in carbohydrates (8.30 g/100 g), total crude protein (22.84 g/100 g) and lipid content (7.07 g/100 g) in G. corticata than in G. edulis. Fatty acids profile showed that G. corticata samples contain higher concentrations of saturated fatty acids, such as palmitic and stearic acids, and polyunsaturated ones such as α-linolenic and docosahexaenoic acids. Contrariwise, G. edulis contained higher amounts of monounsaturated oleic acid. Total amino acid content was 76.60 mg/g in G. corticata and 65.42 mg/g in G. edulis, being the essential amino acid content higher in G. edulis (35.55 mg/g) than in G. corticata (22.76 mg/g). Chlorophyll a was found in significantly higher amounts in G. edulis (17.14 μg/g) than G. corticata, whereas carotenoid content was significantly higher in G. corticata (12.98 μg/g) than in G. edulis. With respect to physical properties, both water- and oil-holding capacities were similar in both seaweeds, whereas swelling capacity was higher in G. edulis. In view of the results, the present study suggests that G. corticata and G. edulis contains important nutrients for human health and are possible natural functional foods.

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“…The effectiveness of an antioxidant is measured by monitoring the inhibition of oxidation of a suitable substrate. In a biological system, antioxidant effectiveness is classified into two groups that the evaluation of lipid peroxidation and measurement of free radical scavenging ability [17]. The phenolic compounds which have a centre of unsaturation and multi OH group in their structural moieties, enable them to donate a proton to DPPH radical thereby neutralizing the later [11,18].…”

Section: Resultsmentioning

confidence: 99%

Antioxidant, Antibacterial, and Anticancer Activity From Marine Red Algae Gracilaria Edulis.

Thiruchelvi

Balashanmugam³

2019

Asian J Pharm Clin Res

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Objective: The marine seaweed Gracilaria edulis was collected from Rameshwaram Mandapam coast. The main objective of G. edulis was to check about the antioxidant, antibacterial, and anticancer activity. The potential use of seaweeds is to prevent colon cancer and leukemia. The crude extract of antioxidant activity was done in methanol and aqueous extract in various concentrations using DPPH assay. The antibacterial activity was analyzed in methanol extract. The antibacterial activity was tested in Gram-positive bacteria (Staphylococcus aureus) and Gram-negative (Pseudomonas) bacteria with various concentration. The anticancer activity was tested against using the breast cancer cell line (MDA-MB231) Methods: The antibacterial activity was checked by crude methanol extract using Gram-positive bacteria (S. aureus) and Gram-negative bacteria (Pseudomonas) with different concentrations. The antioxidant activity was determined using DPPH radical scavenging assay in various concentrations. The anticancer activity was done using 3-(4, 5- dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) assay against breast cancer cell line (MDA-MB231). Results: The antioxidant activity of marine red algae was checked using the stable DPPH radical scavenging assay. The antibacterial activity was analyzed and shows the activity of two different bacteria strain against methanol extract. The anticancer activity was done against breast cancer cell line using MTT assay. Conclusion: Thus, the result shows that red algae G. edulis has good biological activity, and further it can be carried out in pharmaceutical, food preservatives, and cosmetic purpose.

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Phytochemical composition, in vitro antioxidant, antibacterial potential and GC-MS analysis of red seaweeds (Gracilaria corticata and Gracilaria edulis) from Palk Bay, India

Cited by 75 publications

References 36 publications

Bioprospecting Cultivated Tropical Green Algae, Caulerpa racemosa (Forsskal) J. Agardh: A Perspective on Nutritional Properties, Antioxidative Capacity and Anti-Diabetic Potential

Bioprospecting Cultivated Tropical Green Algae, Caulerpa racemosa (Forsskal) J. Agardh: A Perspective on Nutritional Properties, Antioxidative Capacity and Anti-Diabetic Potential

Biochemical, Micronutrient and Physicochemical Properties of the Dried Red Seaweeds Gracilaria edulis and Gracilaria corticata

Antioxidant, Antibacterial, and Anticancer Activity From Marine Red Algae Gracilaria Edulis.

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