Indian Journal of Geo-Marine Sciences最新文献_第2页

Valorization of discarded industrial processing wastes of Siboga squid (Doryteuthiis sibogae) for the extraction and physico-chemical characterization of gelatin 鱿鱼工业加工废渣的提取及明胶的理化性质研究

IF 0.5 4区地球科学

Indian Journal of Geo-Marine Sciences Pub Date : 2022-05-01 DOI: 10.56042/ijms.v51i05.65565

S. Rajasree, L. Aranganathana, M. Gopalakrishnana

引用次数: 0

Extraction and correlation of total phenolic and flavonoid contents in seaweeds collected from Rameshwaram during pre- and post- monsoon period using different solvent systems with their antioxidant activity 季风前后不同溶剂体系对海苔中总酚和类黄酮含量的提取及其抗氧化活性的相关性

IF 0.5 4区地球科学

Indian Journal of Geo-Marine Sciences Pub Date : 2022-05-01 DOI: 10.56042/ijms.v51i05.65566

K. M. Smitaa, L. Abraham, S. Sunithac, R. Vasantharajab, R. Thirugnanasambandamb

{"title":"Extraction and correlation of total phenolic and flavonoid contents in seaweeds collected from Rameshwaram during pre- and post- monsoon period using different solvent systems with their antioxidant activity","authors":"K. M. Smitaa, L. Abraham, S. Sunithac, R. Vasantharajab, R. Thirugnanasambandamb","doi":"10.56042/ijms.v51i05.65566","DOIUrl":"https://doi.org/10.56042/ijms.v51i05.65566","url":null,"abstract":"The present study was carried out to compare and correlate the phenolic and flavonoid contents of Turbinaria sp., Sargassum sp . and Gracilaria sp . extracted using different solvents including methanol, isopropyl alcohol, acetone, acetonitrile, ethyl acetate and hexane, and elucidated for their anti-oxidant activity. The total phenolic and flavonoid contents of the solvent extracts were determined using the Folin-Ciocalteau assay and aluminium chloride colorimetric assay with gallic acid and quercetin as standards, respectively. The anti-oxidant activity in phenolic and flavonoid content was also estimated by phosphomolybdenum method and was compared with gallic acid and quercetin standard. The quantitative analysis of flavonoid content reveals that methanolic extract of Sargassum sp . (9.56±0.38 mg QE/g during pre-monsoon and 9.44±0.48 mg QE/g during post-monsoon season); acetone extract of Gracilaria sp . (2.16±0.11 mg QE/g during pre-monsoon and 2.12±0.07 mg QE/g during post-monsoon season) and methanolic extract of Turbinaria sp. (4.11±0.12 mg QE/g during pre-monsoon and 4.22±0.15 mg QE/g during post-monsoon season) had higher concentration of flavonoid content. However, the quantitative analysis of phenolic content was found to be lower in all the seaweed extracts as compared to flavonoids. The anti-oxidant activity of a phenolic content and flavonoid content were also found to be correlated. The findings of the current study conclusively demonstrate the content of phenolic and flavonoid compounds significantly correlate with antioxidant activity.","PeriodicalId":51062,"journal":{"name":"Indian Journal of Geo-Marine Sciences","volume":null,"pages":null},"PeriodicalIF":0.5,"publicationDate":"2022-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75527877","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Cardio protective activity of Sargassum wightii on isoproterenol induced myocardial stress in rats 马尾草对异丙肾上腺素诱导大鼠心肌应激的心脏保护作用

IF 0.5 4区地球科学

Indian Journal of Geo-Marine Sciences Pub Date : 2022-05-01 DOI: 10.56042/ijms.v51i05.65572

R. E. Renitta, S. Rosariob, P. J. J. Cypriyanac, A. V. Samrotd, S. Dhivae, S. Abiramif, P. Prakashc

{"title":"Cardio protective activity of Sargassum wightii on isoproterenol induced myocardial stress in rats","authors":"R. E. Renitta, S. Rosariob, P. J. J. Cypriyanac, A. V. Samrotd, S. Dhivae, S. Abiramif, P. Prakashc","doi":"10.56042/ijms.v51i05.65572","DOIUrl":"https://doi.org/10.56042/ijms.v51i05.65572","url":null,"abstract":"The aim of this investigation is to determine whether the methanolic extracts of Sargassum wightii can protect rats against isoproterenol-induced myocardial infarction. Four different groups of rats (6 rats in each group) were taken; where group 1 comprised of normal untreated rats, group 2 was injected with Isoproterenol (synthetic catecholamine), group 3 was considered as standard and hence, was injected with Isoproterenol + Simvastatin and group 4 was treated with Isoproterenol + Sargassum wightii ’s extract. Cardioprotective effects of Sargassum wightii was observed via the changes in the lipid profile, cardio marker enzymes and through histopathological studies. Rats treated with the extract of S . wightii showed a significant reduction in total cholesterol, LDL-cholesterol, serum triglycerides and increase in HDL- cholesterol level indicating an undamaged myocardial membrane. Likewise, low enzyme activity in Sargassum wightii treated rats clearly indicated the cardioprotective effects of Sargassum wightii. Histopathological studies were also done to observe the changes on the rats at the tissue level and no pathological changes were observed in Sargassum wightii treated rats. Hence, methanolic extract of Sargassum wightii is evidenced to possess cardioprotective activity against myocardial infarction.","PeriodicalId":51062,"journal":{"name":"Indian Journal of Geo-Marine Sciences","volume":null,"pages":null},"PeriodicalIF":0.5,"publicationDate":"2022-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79770816","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Sorption studies on the removal of copper onto biopolymer derivative: chitosan-g-maliec anhydride-g-ethylene dimethacrylate 壳聚糖-g-马来酸酐-g-乙烯二甲基丙烯酸酯生物聚合物衍生物对铜的吸附研究

IF 0.5 4区地球科学

Indian Journal of Geo-Marine Sciences Pub Date : 2022-05-01 DOI: 10.56042/ijms.v51i05.65577

引用次数: 0

Antibacterial activity of the released metabolites of sea anemone Stichodactyla gigantea (Forskal, 1775) from the coast of South Andaman, India 印度南安达曼海岸海葵Stichodactyla gigantea (Forskal, 1775)代谢产物的抑菌活性

IF 0.5 4区地球科学

Indian Journal of Geo-Marine Sciences Pub Date : 2022-05-01 DOI: 10.56042/ijms.v51i05.65562

N. S. Heera, J. K. Mishra, S. Sneha, M. Sadaka

{"title":"Antibacterial activity of the released metabolites of sea anemone Stichodactyla gigantea (Forskal, 1775) from the coast of South Andaman, India","authors":"N. S. Heera, J. K. Mishra, S. Sneha, M. Sadaka","doi":"10.56042/ijms.v51i05.65562","DOIUrl":"https://doi.org/10.56042/ijms.v51i05.65562","url":null,"abstract":"Marine sessile organisms produce unique bioactive metabolites, which render a defensive barrier against microbial threats and increase survivability in the middle of predators. The earlier studies focused on isolated metabolites from marine sources, composed to exhibit antibacterial, antiviral, and cytotoxic properties. The present study aims to evaluate the antibacterial property of the anemone-released metabolites. The crude and released mucoid metabolite obtained from the sea anemone Stichodactyla gigantea (Forskal, 1775) assayed against five human pathogens like Bacillus subtilis (MTCC 121), Listeria monocytogenes (MTCC 839), Staphylococcus aureus (MTCC839), Bacillus cereus (MTCC 443), and Salmonella enterica typhimurium (MTCC 1252). The assay exhibited positive activity against two pathogens, viz . B . subtilis (MTCC 121) and L. monocytogenes (MTCC 839). Based on the demonstrated activity, the released metabolites were purified using Open Column chromatography. The fractions collected were subjected to an antibacterial assay, which showed a high inhibition zone of 39 mm and 23 mm in diameter against B. subtilis and L. monocytogenes. Followingly, the characterization of purified fractions through GC-MS analysis confirmed the presence of 22 compounds. This study reveals the potential power of the released mucoid metabolites against antibiotic-resistive pathogens. Further studies are essential to elucidate the role of endosymbiont's contribution to mucoid production and their responsiveness towards tackling stressed conditions.","PeriodicalId":51062,"journal":{"name":"Indian Journal of Geo-Marine Sciences","volume":null,"pages":null},"PeriodicalIF":0.5,"publicationDate":"2022-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73758676","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Enhancement of bacteriorhodopsin production from novel haloarchaea strains of Marakanam region of Tamil Nadu 泰米尔纳德邦马拉卡南地区新盐古菌菌株提高细菌视紫红质产量

IF 0.5 4区地球科学

Indian Journal of Geo-Marine Sciences Pub Date : 2022-05-01 DOI: 10.56042/ijms.v51i05.65574

J. Steffya, L. Abraham, D. Inbakandana, K. Govindarajua, G. Dharanib

{"title":"Enhancement of bacteriorhodopsin production from novel haloarchaea strains of Marakanam region of Tamil Nadu","authors":"J. Steffya, L. Abraham, D. Inbakandana, K. Govindarajua, G. Dharanib","doi":"10.56042/ijms.v51i05.65574","DOIUrl":"https://doi.org/10.56042/ijms.v51i05.65574","url":null,"abstract":"Haloarchaea from high saline habitats are known to contain industrially important value-added bioactive compounds such as bacteriorhodopsin, carotenoids, lipids, and proteins. The diversity of Haloarchaea from geographically less explored saline habitats has received less attention. In this study isolation and characterization of the biotechnological potential of novel haloarchaea strains from solar saltern, a hypersaline environment in Marakanam, Tamilnadu was carried out. The samples were collected during the pre-monsoon (July) and post-monsoon (January) season and ten different haloarchaea strains were isolated. UV-Vis spectroscopy analysis revealed the bacteriorhodopsin production by all the isolated strains. Further experiments were carried out to estimate the yield of bacteriorhodopsin and to assess their photocurrent activity and biosensor applications. The maximum yield of bacteriorhodopsin was 5.6 mg/L of cultured lysate. This study will contribute to a better understanding on effect of elicitors on bacteriorhodopsin producing different haloarchaea strains and growing knowledge on their biotechnological applications.","PeriodicalId":51062,"journal":{"name":"Indian Journal of Geo-Marine Sciences","volume":null,"pages":null},"PeriodicalIF":0.5,"publicationDate":"2022-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76229369","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Sorption studies of divalent ions onto ternary beads of alginate, chitosan and carboxymethyl cellulose 海藻酸盐、壳聚糖和羧甲基纤维素三元微球对二价离子的吸附研究

IF 0.5 4区地球科学

Indian Journal of Geo-Marine Sciences Pub Date : 2022-05-01 DOI: 10.56042/ijms.v51i05.65573

B. M. Devia, T. Gomathib, K. Vijayalakshmic, R. Ramyad, S. Pavithrab, P. Sudha

引用次数: 0

Production of marine algae methyl esters and evaluation of its engine performance and emission characteristics 海藻甲酯的生产及其发动机性能和排放特性评价

IF 0.5 4区地球科学

Indian Journal of Geo-Marine Sciences Pub Date : 2022-05-01 DOI: 10.56042/ijms.v51i05.65564

J. Jayaprabakar, A. Karthikeyanb, A. Prabhuc, M. Anisha, Nivin Joya

引用次数: 0

Batch kinetic studies of adsorption of Cu(II) ions from aqueous solutions onto alginate nanoparticles/PEG binary blend 藻酸盐纳米颗粒/聚乙二醇二元共混物对水溶液中Cu(II)离子的吸附动力学研究

IF 0.5 4区地球科学

Indian Journal of Geo-Marine Sciences Pub Date : 2022-05-01 DOI: 10.56042/ijms.v51i05.65575

M. Saranya, T. Gomathi, S. Pavithra, A. Mubashirunnisa, P. Sudha

引用次数: 1

Adsorption of chromium from aqueous solution using Chitosan-g-Graphene /Hydroxyapatite composite 壳聚糖-g-石墨烯/羟基磷灰石复合材料对水溶液中铬的吸附

IF 0.5 4区地球科学

Indian Journal of Geo-Marine Sciences Pub Date : 2022-05-01 DOI: 10.56042/ijms.v51i05.65571

V. Geethaa, S. Lathab, T. Gomathic, S. Pavithrac, P. Sudha

引用次数: 0