The study was conducted to evaluate the use of dried industrial coffee pulp in diets as supplement for ruminants. Two diets were formulated： A and B with 30% coffee pulp content each and different concentrations of c...The study was conducted to evaluate the use of dried industrial coffee pulp in diets as supplement for ruminants. Two diets were formulated： A and B with 30% coffee pulp content each and different concentrations of carbohydrates （milled corn, corn bran, molasses, alfalfa hay） and fibrous residues （corn stubble, sugar cane mash） as ingredients. The dried coffee pulp was subjected to proximate analyses, whilst the two diets were subjected to nutritional and microbiological analyses. The results of the proximate analyses showed that the dried coffee pulp has 18% crude protein （CP）, 33.6% crude fibre （CF） and total digestible nutrients （TDN） content of 63.8%. Diets A and B had the similar mean values for CP, CF and TDN （17%, 4.3% and 75.6%, respectively）. The microbiological results showed that the two diets had the same minimal values for Escherichia coli, Salmonella spp. and coliform bacteria, which were all within the normal allowed values. The results indicate that dry coffee pulp in diets could be supplemented to ruminants for supporting milk and meat production without any adverse effect on their health.展开更多
In this study,coffee pulp(Coffea arabica)and green tea(Camellia sinensis)residues were characterized for use as a substrate of solid-state fermentation for cellulases production.The invasion rate was evaluated,as well...In this study,coffee pulp(Coffea arabica)and green tea(Camellia sinensis)residues were characterized for use as a substrate of solid-state fermentation for cellulases production.The invasion rate was evaluated,as well as cellulases production by strains of Aspergillus niger and Trichoderma asperellum from the western Ghats of India,on coffee pulp,green tea,and a mixture of both substrates(50:50).T.asperellum(AFP)strain was found to have the highest growth rate(0.409±0.021 mm/h)using a mixture of both substrates.The production of cellulases by T.asperellum was unsatisfactory due to the presence of polyphenols in the supports to which A.nigger cellulases are more resistant.The production of cellulases by A.nigger was linked to the pH of the supports,favouring the use of T and TC.It was found that the extracts produced by A.niger(28A strain using a mixture substrate,28A,and 20A strains using only green tea as a substrate)presented the highest cellulase activities when evaluated using a plate technique producing degradation halos of 2.3±0.1 cm of diameter.Aspergillus 28A strain did not require mineral enrichment media for cellulase production using green tea residues as support of solid-state fermentation.展开更多
文摘The study was conducted to evaluate the use of dried industrial coffee pulp in diets as supplement for ruminants. Two diets were formulated： A and B with 30% coffee pulp content each and different concentrations of carbohydrates （milled corn, corn bran, molasses, alfalfa hay） and fibrous residues （corn stubble, sugar cane mash） as ingredients. The dried coffee pulp was subjected to proximate analyses, whilst the two diets were subjected to nutritional and microbiological analyses. The results of the proximate analyses showed that the dried coffee pulp has 18% crude protein （CP）, 33.6% crude fibre （CF） and total digestible nutrients （TDN） content of 63.8%. Diets A and B had the similar mean values for CP, CF and TDN （17%, 4.3% and 75.6%, respectively）. The microbiological results showed that the two diets had the same minimal values for Escherichia coli, Salmonella spp. and coliform bacteria, which were all within the normal allowed values. The results indicate that dry coffee pulp in diets could be supplemented to ruminants for supporting milk and meat production without any adverse effect on their health.
基金the financial support given by the National Council of Science and Technology(CONACYT-Mexico)through the project FONCICYT-CONACYT-SRE-C0013-2015-03-266614which was implemented within a framework of bilateral cooperation between Mexico and India。
文摘In this study,coffee pulp(Coffea arabica)and green tea(Camellia sinensis)residues were characterized for use as a substrate of solid-state fermentation for cellulases production.The invasion rate was evaluated,as well as cellulases production by strains of Aspergillus niger and Trichoderma asperellum from the western Ghats of India,on coffee pulp,green tea,and a mixture of both substrates(50:50).T.asperellum(AFP)strain was found to have the highest growth rate(0.409±0.021 mm/h)using a mixture of both substrates.The production of cellulases by T.asperellum was unsatisfactory due to the presence of polyphenols in the supports to which A.nigger cellulases are more resistant.The production of cellulases by A.nigger was linked to the pH of the supports,favouring the use of T and TC.It was found that the extracts produced by A.niger(28A strain using a mixture substrate,28A,and 20A strains using only green tea as a substrate)presented the highest cellulase activities when evaluated using a plate technique producing degradation halos of 2.3±0.1 cm of diameter.Aspergillus 28A strain did not require mineral enrichment media for cellulase production using green tea residues as support of solid-state fermentation.
