FACTORS IN LEMNA FERMENTATION PRODUCTIVITY

Fisheries

Fish Feed is an important factor in aquaculture. Lemna sp. is one of the aquatic weeds that can be used as an alternative ingredient for fish feed because of its high nutritional content. The high content of crude fiber in duckweed is one of the obstacles in using Lemna sp. as a fish feed ingredient. This problem can be overcome by fermentation. Fermentation will produce simpler compounds that are easier to digest than before with the help of a fermenter. The lemna fermentation process can be carried out with the help of microorganisms in probiotics. Through the fermentation process, the nutritional content in the lemna changes so that it can be used for various things. Lemna which has gone through the fermentation process can be used as an alternative liquid organic fertilizer to replace commercial fertilizers, can be used as bioethanol because of its high ethanol content, and can be used as an alternative ingredient for fish feed. Factors that affect the productivity of lemna fermentation are time, number of inoculums or doses of probiotics and pH.

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