③ Solid waste management
1. Solid wastes (50-70% of the original raw material) : a mixture of heads, viscera, skin, frames, and leftover
muscle meat
2. In the larger plants, much of the solid waste is changed into fish meal
⑴ Development of fish protein hydrolysates
⑵ Used by the pet food industry : the wastes are ground and thoroughly mixed, reduced to 77% moisture,
and then frozen in blocks
⑶ Agricultural fertilizers : a liquid form through acid hydrolysis with postprocess pH adjustment
to neutrality, or by enzymatic hydrolysis
- Dried pellet fertilizer by an enzymatic hydrolysis process
- Other fertilizer by composting surimi soild waste with other organic waste
: adding fish waste to timber waste
⑷ Use fish wastes for human food
- Good-quality fish sauce was developed from Pacific whiting and its byproducts
3. Waste use can be a profit center for seafood plants including surimi operation
4. Fish fertilizers are also becoming more popular for both large farms and small gardens
③ Solid waste management 1. Solid wastes (50-70% of the original raw material) : a mixture of heads, viscera, skin, frames, and leftover muscle meat 2. In the larger plants, much of the solid waste is changed into fish meal ⑴ Development of fish protein hydrolysates ⑵ Used by the pet food industry : the wastes are ground and thoroughly mixed, reduced to 77% moisture, and then frozen in blocks ⑶ Agricultural fertilizers : a liquid form through acid hydrolysis with postprocess pH adjustment to neutrality, or by enzymatic hydrolysis - Dried pellet fertilizer by an enzymatic hydrolysis process - Other fertilizer by composting surimi soild waste with other organic waste : adding fish waste to timber waste ⑷ Use fish wastes for human food - Good-quality fish sauce was developed from Pacific whiting and its byproducts 3. Waste use can be a profit center for seafood plants including surimi operation 4. Fish fertilizers are also becoming more popular for both large farms and small gardens
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