Abdul Karim
Department of Chemistry, Faculty of Mathematics and Natural Sciences, Hasanuddin University, Perintis Kemerdekaan Street KM 10, Tamalanrea Makasssar, Indonesia 90245

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UTILIZATION SOFT STEM OF KEPOK BANANA WASTE (Musa paradisiaca formatypica) AS A BASIC MATERIAL FOR MAKING BIOETANOL WITH ACID HYDROLYSIS METHOD AND FERMENTATION Sulfiani Sulfiani; Abdul Karim; Hasnah Natsir
Jurnal Akta Kimia Indonesia (Indonesia Chimica Acta) Volume 11, No.2: December 2018
Publisher : Hasanuddin University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20956/ica.v11i2.6487

Abstract

Bioenergy, such as bioethanol, is one of the alternative options in order to fulfil the energy demands in the future. Bioethanol is ethanol which resulted from the fermentation process of glucose from natural sources that contains starch and cellulose. This research are aimed to utilize  soft stem of kapok banana (Musa paradisiaca formatypica), which known to have cellulose content approximately 64%, in order to produce bioethanol undergoes acid hydrolysis and bacterial fermentation using Clostridium acetobutylicum. There are two main variables that being investigate in this research such as, acid (HCl) volume of adding (varied from 15 mL, 20 mL, 25 mL, 30 mL, and 30 mL) and length of fermentation time ( 3, 6, 9, 12, and 15 days respectively). Results shown that the maximum concentration of cellulose in soft stem of kepok banana is 46.38% and the bioethanol concentration/volume were achieved on the addition of 15 mL acid chloride and optimum fermentation time of 6 days.
SYNTHESIS OF LIQUID ORGANIC FERTILIZER BASED ON CHICKEN MANURE USING BIOSCA AND FUNGUS BIOACTIVATOR Trichoderma harzianum Rahmad Rahmad; Abdul Karim; Nursiah La Nafie; Muhammad Jayadi
Jurnal Akta Kimia Indonesia (Indonesia Chimica Acta) Volume 11, No.2: December 2018
Publisher : Hasanuddin University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20956/ica.v11i2.6489

Abstract

Production of liquid organic fertilizer from chicken feces with addition bioaktivator Biosca and Trichoderma harzianum fungus aims to determine the influence of time against pH and macro elements (N, P, and K), analyze the influence and determine the bioactivator composition against pH, macro element content, growth and production of tomato plants. The method of making this liquid organic fertilizer is chicken feces dissolved using water in a composter, then composted with addition of bioactivator which is consisting B1 (40 mL Biosca), B2 (40 mL T. harzianum), B3 (10 mL Biosca + 30 mL T. harzianum), B4 (20 mL Biosca + 20 mL T. harzianum) and B5 (30 mL Biosca + 10 mL T. harzianum). Composting is done by time variations of 7 days (M1), 14 days (M2) and 21 days (M3). The result of research shows that the process of making organic liquid fertilizer with time variation of composting and effective bioactivator composition in increasing macro element level and good pH is B5 with 21 days of composting time. The influence of bioactivator composition against pH and macro element indicator is showed by value of N: 5,33%, P: 2,41%, K: 1,34% at pH: 7,1. While the influence against tomato plants on the observation at the 10th week is for the growth of plant height: 197,7 cm, average of plant diameter: 16,27 mm, average of leaf production: 41 sheets, and for the average of fruit production: 32 pieces, average of fruit weight:  32,4 g.