Indonesian Journal of Chemical Science最新文献_第4页

Antibacterial Activity of Cajuputi Oil (Melaleuca leucadendron) Microcapsules Against Staphylococcus aureus Bacteria Applied to Cotton Fabric Fibers 枸杞油微胶囊对棉织物纤维金黄色葡萄球菌的抑菌活性研究

Indonesian Journal of Chemical Science Pub Date : 2022-05-01 DOI: 10.15294/ijcs.v11i1.53445

I. Sulistiyani, A. Prasetya

{"title":"Antibacterial Activity of Cajuputi Oil (Melaleuca leucadendron) Microcapsules Against Staphylococcus aureus Bacteria Applied to Cotton Fabric Fibers","authors":"I. Sulistiyani, A. Prasetya","doi":"10.15294/ijcs.v11i1.53445","DOIUrl":"https://doi.org/10.15294/ijcs.v11i1.53445","url":null,"abstract":"\u0000 \u0000 \u0000 \u0000Essential oils were sensitive and easily degraded when exposed to oxygen, heat, and light. The microencapsulation technique is very suitable to protect the properties and activity of essential oils. The purpose of this study was to determine the effect of coating material composition on cajuputi leaf oil microcapsules. The microcapsules consist of core material and coating material. Cajuputi leaf oil was chosen as the core material for microcapsules because it has antibacterial activity with dominant components of 1,8-cineol of 55.43% and α-terpineol of 16.76%. Microcapsule coating materials used were maltodextrin and gum arabic with a ratio of 7:1; 6:2; 5:3; 4:4; 3:5; 2:6; and 1:7. From the results of the study, the microcapsules that had the best formulation were in the ratio of the coating material to 6:2 with a yield value of 82.35%; water content of 2.08%; particle size of 1.0512 m; and controlled release of 46%. Microcapsules with the best formulation tested by SEM produced irregular shapes, tested for the antibacterial activity of Staphylococcus aureus having an inhibition zone of 15 mm. The microcapsules with the best formulation were then immobilized into cotton fabric fibers with the help of polyurethane which was retested using SEM. The results of this cotton cloth will be used as a coating on cloth masks so that it has antibacterial properties. \u0000 \u0000 \u0000 \u0000","PeriodicalId":13479,"journal":{"name":"Indonesian Journal of Chemical Science","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74968589","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Isolasi dan Elusidasi Senyawa Flavonoid dari Biji Alpukat (Persea americana Mill.) 分离和排异鳄梨籽的类黄酮。

Indonesian Journal of Chemical Science Pub Date : 2018-09-01 DOI: 10.15294/ijcs.v7i2.20997

Kiki Feliana, S. Mursiti, H. Harjono

{"title":"Isolasi dan Elusidasi Senyawa Flavonoid dari Biji Alpukat (Persea americana Mill.)","authors":"Kiki Feliana, S. Mursiti, H. Harjono","doi":"10.15294/ijcs.v7i2.20997","DOIUrl":"https://doi.org/10.15294/ijcs.v7i2.20997","url":null,"abstract":"Avocado (Persea americana Mill.) is a plant that can flourish in tropical regions like Indonesia. Avocado seeds have the hypoglycemic effect and can be used for traditional medicine. The ethanol extract of avocado seeds contains several secondary metabolite compounds such as alkaloids, triterpenoids, tannins, flavonoids, and saponins. Aims of this study are to identify groups and structures of flavonoid compounds in avocado seeds. 4,000 g of avocado seed powder produces ethanol 170 gcondensed extract with maseration process. 100 g of viscous ethanol extract using ethyl acetate and water yielded 25.6 g of ethyl acetate extract with partition process. The separation of ethyl acetate extract by Thin Layer Chromatography (TLC) with G-F254 stationary phase and n-butanol mobile phase : acetic acid: water (BAA) phase (4:1:5) produces positive fractions containing flavonoids.Results of avocado seeds isolate analysis with FT-IR showed that isolate has OH functional group, CH aliphatic, C=O, C=C aromatics, and CH aromatic, while analysis with UV-Vis spectrophotometer showed the absorption peak at 285 nm and 320 nm wavelength, so the hypothesis of isolate is flavonoid compound flavanon group with hydroxy group at C-7 atom.","PeriodicalId":13479,"journal":{"name":"Indonesian Journal of Chemical Science","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2018-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78261906","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 5

Isolasi dan Uji Antibakteri Minyak Daun Sirih Hijau dan Merah Terhadap Streptococcus mutans. 对红叶链球菌油的分离和抗菌试验。

Indonesian Journal of Chemical Science Pub Date : 2018-01-18 DOI: 10.15294/ijcs.v6i3.16907

Aden Dhana Rizkita, Edy Cahyono, S. Mursiti

引用次数: 4

PENGGUNAAN KHITOSAN SEBAGAI PENGGANTI FORMALIN UNTUK PENGAWETAN IKAN TERI 用锡箔代替甲醛腌制凤尾鱼

Indonesian Journal of Chemical Science Pub Date : 2013-05-01 DOI: 10.32493/JITK.V2I1.1086

Didik Iswadi, Wisnu Sunarto, A. Prasetya

{"title":"PENGGUNAAN KHITOSAN SEBAGAI PENGGANTI FORMALIN UNTUK PENGAWETAN IKAN TERI","authors":"Didik Iswadi, Wisnu Sunarto, A. Prasetya","doi":"10.32493/JITK.V2I1.1086","DOIUrl":"https://doi.org/10.32493/JITK.V2I1.1086","url":null,"abstract":"Penelitian ini mempelajari penggunaan khitosan sebagai pengawet, pada pengawetan ikan teri yang disimpan pada suhu kamar. Penelitian juga menggunakan NaCl dan formalin sebagai pembanding. Tujuan untuk menganalisa mutu dan mengetahui pengaruh variabel konsentrasi khitosan, konsentrasi NaCl dan konsentrasi formalin dan lama penyimpanan ikan teri dari aspek kadar air, mikrobiologi (total bakteri/TPC), kadar abu dan kadar plumbum. Sampel pertama, ikan teri dengan khitosan (A) yaitu dengan konsentrasi khitosan A1= blanko; A2=0,5%; A3=1,0%) sedangkan perlakuan lama penyimpanan (B) yaitu B1=1; B2=2; B3=4; B4=6; B5=8 minggu). Sampel kedua, ikan teri dengan NaCl (C) yaitudengan konsentrasi NaCl C1=blanko; C2=0,5%; C3=1,0%) sedangkan perlakuan lama penyimpanan (D) yaitu D1=1; D2=2; D3=4; D4=6; D5=8 minggu). Sampel ketiga, ikan teri dengan formalin (E) yaitu dengan konsentrasi formalin E1=blanko; E2=0,5%; E3=1,0%) sedangkan perlakuan lama penyimpanan (F) yaitu F1=1; F2=2; F3=4; F4=6; F5=8 minggu). Pengawetan ikan teri menggunakan khitosan konsentrasi yang terbaik adalah penggunaan konsentrasi khitosan 0,5% sedangkan lama penyimpanannya yang terbaik adalah minggu ke dua dengan jumlah bakteri sedikit. Penggunaan larutan NaCl tidak berpengaruh pada jumlah kadar air tetapi lama penyimpanan berpengaruh pada kadar air. Penggunaan larutan formalin tidak berpengaruh pada jumlah kadar air tetapi lama penyimpanan berpengaruh pada kadar air. Hasil pengujian untuk kadar air berkisar 39,88-50,52% b/b, bakteri 40-372 koloni/g,Staphylococcus aureus 94 koloni/g, kadar abu 0,98% b/b dan kadar plumbum 1,035 - 1,32 mg/kg.","PeriodicalId":13479,"journal":{"name":"Indonesian Journal of Chemical Science","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2013-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85862183","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1