Jurnal Teknologi dan Industri Pangan

AKTIVITAS NANOMAGNETIT terhadap KANDUNGAN KLOROFIL pada TANAMAN BAYAM (Amaranthus spp)

2022-01-24T13:29:13Z

AKTIVITAS NANOMAGNETIT terhadap KANDUNGAN KLOROFIL pada TANAMAN BAYAM (Amaranthus spp); Nanomagnetite Activity toward Chrophyll inside Spinach (Amaranthus spp.) Hartono, Maiyani; Sugiarti, Sri; Darusman, Latifah K. Synthesis of nanomagnetite was complete by hydrothermal on mixtures of urea, citric acid and some of iron salts: FeCl3·6H2O at 200 o C (FE120), FeCl3·6H2O at 250 o C (FE125), FeSO4·7H2O at 200 o C (FE220), and FeSO4·7H2O at 250 o C formula. Each of formula showed that averages of crystal sizes were 24.89 nm, 25.82 nm, 28.22 nm and 50.78 nm by XRD identification. Application of FE120 nanomagnetites was applied into spinaches increased concentration of iron and nitrogen after 30 days growth. The iron concentration was increased 3.62 % on soil media and 38.81 % on compos soil media. Nitrogen concentrations were increased 27.32 % on soil media and 66.67 % on compos soil media. Based on increased of iron and nitrogen concentration, there were influent of chlorophyll concentration 20.80 % on compos soil media and 8.87 % on soil media. Spinach that applied into media show the physics quality of stem diameter, leaf number, leaf area, and stem number better than control. Soil media and compos soil media weren’t contaminated by iron and nitrogen inside of FE120 nanomagnetite.

Penggunaan Xilanase Streptomyces Sp. 45 1·3 Amobil Untuk Hiorolisis Xilan Tongkoljagung

2015-09-16T02:43:54Z

Penggunaan Xilanase Streptomyces Sp. 45 1·3 Amobil Untuk Hiorolisis Xilan Tongkoljagung Meryandini, Anja; Sunarti, Titi Candra; Mutial, Ferry; Gusmawati, Niken Financia; Lestari, Yulin Xylan extraction from corncob is done by using alkaline as solvent. Xylan extraction from comcob could give the yields as 10.9%. One percent of corncob xylan is useti as substrate to produce the xylanase, compared to oatspelt xylan. Immobilization of xylanase was performed using 1% EudragifTll S100 solution (wlv), with 5:1 volume ratio of xylanase and 1 % EudragifTM S100 (wlv). Activity of the immobilized xylanase was decteased to 23.97% compared with free xylanase. Immobilized xylanase have optimum pH and temperature at 6.0 and 40't: respectively, have also thermal stability at 30-40't: for an hour. immobilization xylanase could be reused, but its activity decreased to 52.38% after 3 times application. Key words : xilanase, Streptomyces, amobile

Bioadsorpsi Hg(II) Oleh Pati Sagu Taut Silang Fosfat

2015-09-04T02:55:47Z

Bioadsorpsi Hg(II) Oleh Pati Sagu Taut Silang Fosfat Romengga, Jorion; Irawadi, Tun Tedja; Sugiarti, Sri Crosslinked-sago-starch-phosphate (SgP) has been succesfully sysnthesized from native starch (Sg) and Na2HPO4 i an accidic condition. ...

Aktivitas antimikroba ekstrak kedawung (Parkia Roxburghii G. Don) terhadap bakteri patogen

2015-08-29T00:43:27Z

Aktivitas antimikroba ekstrak kedawung (Parkia Roxburghii G. Don) terhadap bakteri patogen; Anfimicrobial activity of kedawung extract (Parkia Roxburghii G. Don) on food borne pathogens Ervizal A.M. Zuhud; Rahayu, Winiati Pudji; Wijaya, C. Hanny; Sari, Pipi Puspita Kedawung is a Leguminosae/Fabaceae which. It is commonly used as traditional medicine for infection and stomach disoders, caused by bactena. . . The aim of this study is to eXiiII1ine the potential antimicrobial actNity of seed, bart<, root and kedawung leaf It is expected that the result will gIVe mformatmn on charactenstlCs and concentration of kedawung part which have the highest antimicrobiaJ activity. The resuH showed that the bart< has the highest anlimicrobial activity on Escherichia coli, Vibrio cholerae, Staphylococcus aureus and Bacillus cereus. Extract medetrorn kedawung plant and water (ratio t:2,/Yv) was beffer than those mede wHh ratios of 1 : 1 or 1 : 3 (b/v). Hed did not decrease Its antimicrobial actrvHy. Extract conceniratlOn of 10"10 (21.40 mifmO wHh contact time of 24 hour decreased bacterial growth but did not inactivate them.