Pengaruh Lama Fermentasi Limbah Kulit Nenas (Ananas Comosus L. Merr) Terhadap…

The research aims to know influence of fermentation time pineapple skin waste (Ananas comosus L. Merr) againts bioethanol level and produce a design biology learning module at senior high school biotechnology material. Therefore a survey has been conducted in Kualu Nenas village of Kampar district Riau province to obtain the information as a raw for research and instruments for designing learni…