scholarly journals Enhancement of the nutritive values of some agro-industrial waste products by solid state fermentation.

2021 ◽  
Vol 41 (2) ◽  
pp. 81-85
Author(s):  
S. O. Omoikhoje ◽  
R. A. Animashaun ◽  
M. I. Edokpayi

This study was conducted to determine the effect of biodegradation on the nutrient contents of rice bran (RB), cassava residual pulp (CRP), saw dust (SD) and palm oil fibre (POF) by Penicilium sp. RB, CRP, SD and POF were subjected to solid state fermentation by Penicilium sp. for 7 days and the process was terminated by oven drying at 700C for 24hours. The fermented samples were thoroughly mixed, dried and stored in sterile bottles for analyses. Results of proximate composition before and after biodegradation revealed that percentage improvement in crude protein, ether extract, ash, and gross energy were significantly (P<0.05) higher in CRP compared to RB, SD and POF. Similarly, percentage reduction in crude fibre after biodegradation was highest (P><0.05) in CRP compared to other agro industrial wastes products. It was evident that solid state fermentation using Penicillium sp enhanced the crude protein value and reduced the crude fibre contents of rice bran, cassava residual pulp, saw dust and palm oil fibre thereby increasing nutrient availability and their utilization as feed alternative ingredients for farm animal nutrition. ><0.05) higher in CRP compared to RB, SD and POF. Similarly, percentage reduction in crude fibre after biodegradation was highest (P<0.05) in CRP compared to other agro industrial wastes products. It was evident that solid state fermentation using Penicillium sp enhanced the crude protein value and reduced the crude fibre contents of rice bran, cassava residual pulp, saw dust and palm oil fibre thereby increasing nutrient availability and their utilization as feed alternative ingredients for farm animal nutrition.><0.05) n CRP compared to other agro industrial wastes products. It was evident that solid state fermentation using Penicillium sp enhanced the crude protein value and reduced the crude fibre contents of rice bran, cassava residual pulp, saw dust and palm oil fibre thereby increasing nutrient availability and their utilization as feed alternative ingredients for farm animal nutrition.

2013 ◽  
Vol 14 (1) ◽  
pp. 67-74
Author(s):  
Bina Gautam ◽  
Tika B Karki ◽  
Om Prakash Panta

Amylase is an amylolytic enzyme used in food industry which is generally produced by Aspergillus spp. under solid state fermentation. The present study is concerned with the isolation, screening and selection of suitable strains of Aspergillus spp. and optimization of cultural conditions for the biosynthesis of amylase. Rice and wheat brans were used as substrates which are readily available inexpensive raw materials for amylase production. From 85 samples of rice and wheat grains, 55 colonies obtained on potato dextrose agar (PDA) were suspected to be Aspergillus oryzae and only 35 colonies possessed the morphological characteristics similar to that of A. oryzae indicating the isolates were most likely the strains of A. oryzae. Of all the fungal isolates of Aspergillus spps., Asp.31 gave maximum production of amylase (720.782 IUgds-1) in solid state fermentation media. This strain was selected as a parental strain for optimization for cultural conditions. The obtained data were analyzed using SPSS- 11.5 program. Of all the substrates (rice bran, wheat bran and their mixture), rice bran was the best for producing amylase of highest activity 611.614 IUgds-1.The highest enzyme activity of 698.749 IUgds-1 was observed at 50% initial moisture level of the substrate. The optimum temperature was 25°C for producing the crude amylase enzyme with amylase activity of 577.757 IUgds-1. Nepal Journal of Science and Technology Vol. 14, No. 1 (2013) 67-74 DOI: http://dx.doi.org/10.3126/njst.v14i1.8924


2018 ◽  
Vol 37 (2) ◽  
pp. 149-156 ◽  
Author(s):  
C. Marzo ◽  
A.B. Díaz ◽  
I. Caro ◽  
A. Blandino

Nowadays, significant amounts of agro-industrial wastes are discarded by industries; however, they represent interesting raw materials for the production of high-added value products. In this regard, orange peels (ORA) and exhausted sugar beet cossettes (ESBC) have turned out to be promising raw materials for hydrolytic enzymes production by solid state fermentation (SSF) and also a source of sugars which could be fermented to different high-added value products. The maximum activities of xylanase and exo-polygalacturonase (exo-PG) measured in the enzymatic extracts obtained after the SSF of ORA were 31,000 U·kg-1 and 17,600 U·kg-1, respectively; while for ESBC the maximum values reached were 35,000 U·kg-1 and 28,000 U·kg-1, respectively. The enzymatic extracts obtained in the SSF experiments were also employed for the hydrolysis of ORA and ESBC. Furthermore, it was found that extracts obtained from SSF of ORA, supplemented with commercial cellulase, were more efficient for the hydrolysis of ORA and ESBC than a commercial enzyme cocktail typically used for this purpose. In this case, maximum reducing sugars concentrations of 57 and 47 g·L-1 were measured after the enzymatic hydrolysis of ESBC and ORA, respectively.


2018 ◽  
Vol 36 (5) ◽  
pp. 381-388 ◽  
Author(s):  
Ana C. Oliveira ◽  
Graziella M. Amorim ◽  
José Augusto G. Azevêdo ◽  
Mateus G. Godoy ◽  
Denise M. G. Freire

Fermentation ◽  
2019 ◽  
Vol 5 (2) ◽  
pp. 44 ◽  
Author(s):  
Omarini ◽  
Labuckas ◽  
Zunino ◽  
Pizzolitto ◽  
Fernández-Lahore ◽  
...  

Solid-state fermentation (SSF) of rice bran (RB) employing the edible fungus Pleurotus sapidus was investigated as a process strategy to improve the nutritional quality of this low-cost and abundant substrate. During fermentation, samples were withdrawn at different time intervals (4, 6, and 10 days) and further analyzed. Established methods were deployed to monitor the changes in nutritional composition (carbohydrates, proteins, ash, and lipids). Additionally, changes in fatty acid composition was studied as a function of culture progress. Results showed that the SSF of rice bran increased total carbohydrates from 36.6% to 50.2%, total proteins from 7.4% to 12.8%, and ash from 7.6% to 11.5%. However, the total lipid content was reduced from 48.5% to 27.8%. The fatty acid (FA) composition of RB included mainly oleic, linoleic, and palmitic acids. Upon fermentation with P. sapidus, small differences were found: linoleic acid and oleic acid content were increased by 0.4% and 1.1%, respectively, while palmitic acid content was reduced by 0.8%. This study demonstrated an improvement in the nutritional quality of RB after fermentation with P. sapidus, since protein, carbohydrates, minerals, and specific FA components were increased. As a whole, our results indicate that fermented rice bran could be used as a high-quality animal feed supplement.


2007 ◽  
Vol 50 (5) ◽  
pp. 759-766 ◽  
Author(s):  
Jorge Alberto Vieira Costa ◽  
Eliane Colla ◽  
Glênio Magagnin ◽  
Lucielen Oliveria dos Santos ◽  
Mauricio Vendruscolo ◽  
...  

Amyloglucosidase (AMG) and exo-polygalacturonase (exo-PG) were simultaneously produced by two different strains of Aspergillus niger in solid-state fermentation (SSF) using defatted rice-bran as substrate. The effect of Aspergillus niger strain (t0005/007-2 and/or CCT 3312), inoculum type (spore suspension or fermented bran) and addition of inducers (pectin and/or starch) to the culture media was studied using a 3² x 2¹ factorial experimental design. The production of AMG and exo-PG was significantly affected by fungal strain and inoculum type but inducers had no effect. The maximum yields obtained were 1310 U/g dm for AMG using a spore suspension of A. niger CCT 3312 and 50.2 U/g dm for exo-PG production, using A. niger t0005/007-2 and fermented bran as inoculum. The yields obtained represented acceptable values in comparison with data available in the literature and indicated that defatted rice-bran was a good nutrient source.


2016 ◽  
Vol 41 (5) ◽  
Author(s):  
Muhammad Nadeem ◽  
Muhammad Ahmar Ali ◽  
Quratulain Syed ◽  
Rubina Nelofer ◽  
Uzma Sahar

AbstractObjective: The purpose of the present study was to enhance nutritional qualities of various agricultural byproducts such as wheat bran, rice bran and rice polish through co-culture solid state fermentation (SSF) using Candida utilis and Rhizopus oligosporus for their better exploitation as feed ingredients.Methods: Co-culture solid state fermentation (SSF) was carried at 30oC for 48 h by employing Candida utilis and Rhizopus oligosporus on various agricultural byproducts like wheat bran, rice bran and rice polish. After that the fermented agricultural byproducts were dried in hot air oven at 80oC and analyzed to compare with unfermented byproducts.Results: The results of the proximate analysis showed that crude protein contents increased significantly (p≤0.05) in all the fermented substrates with concurrent decrease in nitrogen free extract (NFE) contents. A significant reduction in anti nutritional content (phytic acid) was also observed in fermented products whereas values of mineral contents [calcium (Ca) and phosphorus (P)] were found high. Resultantly, high mineral contents improved Ca: P ratio in the fermented products. Shelf life study showed that the fermented substrates were nutritionally stable and no significant changes in nutritional values were observed up to 90 days.Conclusion: All these results showed that the fermented substrates are nutritionally better and can be successfully exploited as animal feed for better growth of livestock.


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