Chemical Composition and Energy Value of Dried Meal from Food Waste as Feedstuff in Swine and Cattle

Abstract

swine and cattle using two enzymatic methods ranging from 77-87% and 51-102%, respectively. Measured TDN for sheep using dried waste meal produced on a large scale factory were 93.0 and 88.7%, corresponding to the added level of dried meal, which were 15 and 30% as air dry matter basis.

Investigation of the available technologies and their feasibility for the conversion of food waste into fish feed in Hong Kong

“…Due to the complex composition of food waste, its crude protein level can fluctuate significantly, ranging from 3.0 to 37.7 %. On an industrial scale, the variation can be reduced to 19.8-25.8 % by collecting food waste from multiple sources such as school canteens, food factories, and convenience stores (Sayeki et al 2001). While this may not be nutritious enough for high trophic level fish like carnivorous and omnivorous fish, its protein level is adequate for low trophic level fish like herbivorous and forage fish, which has a protein requirement of 18-23 %.…”

Solid phase bio-electrofermentation of food waste to harvest value-added products associated with waste remediation

“…utilization of food waste as feed for pigs and cattle in order to close the nutrient loop (Sayeki et al, 2001;Shin and Youn, 2005;De Gioannis et al, 2013;Li et al, 2010;Kim et al, 2013;Dahiya et al, 2015). This waste can also act as good substrate for anaerobic digestion process due to its highly biodegradable organic content (Lim et al, 2000;Kim et al, 2006;Venkateswar Reddy et al, 2011;Ruggeri et al, 2013).…”

Valorisation of food waste in biotechnological processes

“…The methods listed in Table 3 may also be suitable for a biodiesel production from food waste, but variable lipid contents in food waste may make it economically unfavourable [5,14,15]. However, remaining solids obtained after hydrolysis of food waste by Aspergillus awamori and Aspergillus oryzae were found to be rich in lipids (~80%, w/w) and it is currently under investigation as feedstock for production of biodiesel in our laboratory.…”

“…A composition of 30-60% starch, 5-10% proteins and 10-40% (w/w) lipids makes food waste to a promising raw material [5,14,15]. Recovery of nutrients from food waste in the form of carbon, nitrogen and phosphorous compounds can be performed by chemical and biological/enzymatic methods after solubilisation of the waste matter [21][22][23][24][25].…”

“…Many studies have been carried out which describe the possibilities to produce energy from food waste by incineration and anaerobic digestion, or to use food waste as feed for pigs and cattle in order to close the nutrient loop [5][6][7][8][9][10][11]. Another approach is the application of food waste as feedstock in cultivation of microorganisms.…”