Effect of Inoculum Dosage Aspergillus niger and Rhizopus oryzae mixture with Fermentation Time of Oil Seed Cake (Jatropha curcas L) to the content of Protein and Crude Fiber

3rd International Conference on Mathematics, Science and Education 2016

数学;自然科学;教育

Kurniati, T.^1 ; Nurlaila, L.^1 ; Iim^1

Department of Biology Education, Mathematics Education, Faculty of Tarbiyah, UIN Sunan Gunung Jati Bandung, No. 105, Street of AH. Nasution, Bandung, Indonesia^1

关键词: Aspergillus niger;    Experimental methods;    Factorial design;    Fermentation time;    Jatropha curcas l;    Jatropha seed cakes;    Nutrient contents;    Plant productivity;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/824/1/012064/pdf
DOI  :  10.1088/1742-6596/824/1/012064

来源: IOP

【 摘 要 】

Jatropha curcas L already widely cultivated for its seeds pressed oil used as an alternative fuel. This plant productivity per hectare obtained 2.5-5 tonnes of oil/ha / year and jatropha seed cake from 5.5 to 9.5 tonnes/ha/year, nutrient content of Jatropha curcas seed L potential to be used as feed material, However, the constraints faced was the low crude protein and high crude protein. The purpose of the research was to determine the dosage of inoculum and fermentation time of Jatropha seed cake by a mixture of Aspergillus Niger and Rhizopus oryzae on crude protein and crude fibre. The study was conducted by an experimental method using a Completely Randomised Design (CRD) factorial design (3×3). The treatment consisted of a mixture of three dosage levels of Aspergillus Niger and Rhizopus oryzae (= 0.2% d1, d2 and d3 = 0.3% = 0.4%) and three levels of fermentation time (w1 = 72 hours, 96 hours and w2 = w3 = 120 hours) each repeated three times. The parameters measured were crude protein and crude fibre. The results showed that dosages of 0.3% (Aspergillus Niger Rhizopus oryzae 0.15% and 0.15%) and 72 hours (d2w1) is the dosage and the optimal time to generate the highest crude protein content of 21.11% and crude fibre amounted to 21.36%.