1) Caused by fermentation 2) Life 3) Produced by living organisms 
Of biological origin. Syn. organic.
Produced by living organisms.
<biology> Something which came about as a result of the activities of living things. ... Something which is necessary for life processes. ... Origin: Gr. Gennan = to produce ... (09 Oct 1997) ... 
(bi″o-jen´ik) originating in a biological process.
Type: Term Pronunciation: bī′ō-jen′ik Definitions: 1. Produced by a living organism.
[adj] - produced by living organisms or biological processes 2. [adj] - essential for maintaining the fundamental life processes
biogenic Produced by a living organism or resulting from the actions of living organisms; such as, fermentation, necessary for life processes, including food and water.
Description of material produced by organisms or their activities.
adjective essential for maintaining the fundamental life processes; `sleep and food and water are among the biogenic needs of the organism`
resulting from the activity of living organisms, as fermentation. · necessary for the life process, as food and water.