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(The Effect of Chitosan Addition and Sedimentation Time on Wastewater Treatment of Leathers Tanning Industries) Sapto Hartanto, Eddy; Bastaman, Syarif; Citroreksoko, Padmono
Warta Industri Hasil Pertanian Vol 10, No 1-2 (1993)
Publisher : Balai Besar Industri Agro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1930.132 KB)

Abstract

The use of chitosan as a flocculation in the treatment of liquid waste of leather tanning industry has been studied.Chitosan was used together with commercial polymers PA 322 and PN 161. It was found tahat the addition of 1% solution of chitosan and polymers significantly affected the decrease of turbidity,suspended solid,cod,and chrom content.The use of 1% sulition along with 90 minutes settling gave the best result i.e. lessened the turbidity 98.8%,suspended soild 97.9%,COD 84%,and chorm content 100%.
(The Effect of Chitosan Addition and Sedimentation Time on Wastewater Treatment of Leathers Tanning Industries) Sapto Hartanto, Eddy; Bastaman, Syarif; Citroreksoko, Padmono
Warta Industri Hasil Pertanian Vol 10, No 1-2 (1993)
Publisher : Balai Besar Industri Agro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1930.132 KB)

Abstract

The use of chitosan as a flocculation in the treatment of liquid waste of leather tanning industry has been studied.Chitosan was used together with commercial polymers PA 322 and PN 161. It was found tahat the addition of 1% solution of chitosan and polymers significantly affected the decrease of turbidity,suspended solid,cod,and chrom content.The use of 1% sulition along with 90 minutes settling gave the best result i.e. lessened the turbidity 98.8%,suspended soild 97.9%,COD 84%,and chorm content 100%.
Characterization of Protease Crude Extract from Indigenous Lactic Acid Bacteria and the Protein Degradation Capacity in Local Tuber and Cereal Paste Flour Khusniati, Tatik; Nur Kasfillah, Nanda Sabbaha; Syafriana, Vilya; Zahara, Resti Sofia; Citroreksoko, Padmono; Sulistiani, Sulistiani; Anindyawati, Trisanti
Jurnal Kimia Terapan Indonesia (Indonesian Journal of Applied Chemistry) Vol 21, No 1 (2019)
Publisher : Research Center for Chemistry - LIPI

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (35.694 KB) | DOI: 10.14203/jkti.v21i1.419

Abstract

Protease hidrolyzed protein in flour in order to more digest by human ulcer. Lactobacillus plantarum B110 and Lactobacillus satsumensis are indigenous lactic acid bacteria that produce protease. The objective of this research is to characterization of protease crude extract from indigenous lactic acid bacteria and the protein degradation capacity in local tuber and cereal paste flour. Tuber and cereal flour used were purple sweet potato (Dioscorea alata), cassava (Manihot esculenta), rice (Oryza sativa), corn (Zea mays) and wheat (Triticum) as comparison. Proteaseactivity was tested by Horikoshi method (1971) and protein degradation was by formol titration. Research results showed that optimum activities and stabilities of Lactobacillus plantarum B110 were at pH: 7.5, 45oC and pH:5.0-8.0, 35-50oC, while that L. satsumensis EN 38-32 were at pH: 7.0, 40oC and pH:6.0-8.0, 20-45oC. Increases in protein degradation capacity of the paste flour additional proteases crude extract from L. plantarum B110 were 0.0838% (purple sweat potato), 1.3299% (cassava), 0.5834% (corn), 0.7499% (rice) and 1.5551% (wheat as comparison); while that L. satsumensis EN 38-32 were 0.20% (purple sweet potato), 0.32% (cassava), 0.87% (corn), 1.17% (rice). Based on increases in protein degradation capacity, protease crude extract from L. plantarum B110  and L. satsumensis EN 38- 32 were sequently better to hidrolyze protein of cassava and rice paste flour than thatother tuber and cereal.
Toksisitas kombinasi ekstrak etanol 70% daun petai cina (Leucaena leucocephala (Lam.) de Wit) dan kulit jengkol (Archidendron jiringa (Jack) I.C.Nielsen) dengan metode Brine Shrimp Lethality Test Noviardi, Harry; Yuningtyas, Sitaresmi; Tri R, Diah Ajeng; Ben, Ahmad; Citroreksoko, Padmono
Riset Informasi Kesehatan Vol 8 No 1 (2019): Riset Informasi Kesehatan
Publisher : Sekolah Tinggi Ilmu Kesehatan Harapan Ibu Jambi

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (186.112 KB) | DOI: 10.30644/rik.v8i1.216

Abstract

Latar Belakang: Daun Petai cina dan kulit jengkol merupakan tumbuhan suku polong-polongan yang mengandung senyawa bahan alam seperti alkaloid, flavonoid, saponin, tanin dan triterpenoid. Senyawa bahan alam tersebut diduga berpotensi sebagai antikanker.Uji toksisitas digunakan untuk mendeteksi potensi senyawa antikanker.Tujuan penelitian ini adalah untuk menentukan nilai toksisitas dari kombinasi ekstrak daun petai cina dan kulit jengkol. Metode:Proses ekstraksi menggunakan daun petai cina dan kulit jengkol yang digunakan secara berturut-turut 1:1, 1:3, 1:5, 1:7, dan 1:9. Metode toksisitas yang digunakan adalah Brine Shrimp Lethality Test (BSLT)dengan hewan uji Artemia salina L. Parameter yang diukur adalah nilai lethal concentration (LC50). Hasil:Nilai LC50 yang diperoleh dari kombinasi ekstrak daun petai cina dan kulit jengkol 1:1, 1:3, 1:5, 1:7 dan 1:9 secara berturut-turut sebesar 85.27, 30.41, 21.76, 14.06 & 1.358 ppm. Hasil penelitian ini menunjukkan semua kombinasi ekstrak daun petai cina dan kulit jengkol termasuk dalam kategori sangat toksik. Kesimpulan:Kombinasi ekstrak daun petai cina dan kulit jengkol memberikan efek sangat toksik yang diduga berpotensi sebagai antikanker.