Journal of Agricultural Chemistry and Environment

Volume 10, Issue 1 (February 2021)

ISSN Print: 2325-7458   ISSN Online: 2325-744X

Google-based Impact Factor: 0.82  Citations  

Studies on Composting Spent Coffee Grounds by Aspergillus sp and Aspergillus sp in Aerobic Static Batch Temperature Control

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DOI: 10.4236/jacen.2021.101007    581 Downloads   4,068 Views  Citations

ABSTRACT

Spent Coffee Ground (SCG) is characterized by high organic content, in the form of insoluble polysaccharides bound and phenol compounds. Phenol compounds are toxic to nature and are a cause of environmental pollution. Composting method of this study is aerobic static batch composting with temperature control with adding activators of some fungi such as Aspergillus sp, and Penicillium sp. The purpose of the research is to fill the research gap from previous studies of spent coffee grounds compost, which requires a long time in composting, so that if it is used directly on the soil and plants, the positive effect also requires a long time. The result of composting for 28 days with this method is that mature compost has black crumb and normal pH, with characteristics of C/N ratio below 10: C1 (7.06), C2 (6.99). This value is far from the control with a C/N ratio of 8.33. Decompose rate of macromolecule are above 40% for lignin and 70% for cellulose. Implementation of compost in radish plants, resulting Germination Index above 80% which indicates that the compost is ripe: control (92.39%), C1 (183.88%), C2 (191.86%). The results of the analysis with FTIR also showed that the compost was mature and stable, and rich in minerals. So, it can be concluded that this composting method can speed up composting time and optimize the results of compost produced.

Share and Cite:

Afriliana, A. , Hidayat, E. , Mitoma, Y. , Masuda, T. and Harada, H. (2021) Studies on Composting Spent Coffee Grounds by Aspergillus sp and Aspergillus sp in Aerobic Static Batch Temperature Control. Journal of Agricultural Chemistry and Environment, 10, 91-112. doi: 10.4236/jacen.2021.101007.

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