USE OF OKARA WASTE FOR ALGAE NUTRITION | ||||
| Arab Universities Journal of Agricultural Sciences | ||||
| Article 3, Volume 25, Issue 2, September 2017, Page 271-279 PDF (554.43 K) | ||||
| Document Type: Original Article | ||||
| DOI: 10.21608/ajs.2017.13588 | ||||
 View on SCiNiTO | ||||
| Authors | ||||
| Sheraz Kamal* 1; A. B. El-Sayed2; Amal A. Hassan3; Hoida A.M. El-Shazly1; Manar T. Ibrahim3 | ||||
| 1Food Technology Research Institute, Agricultural Research Center, Giza, Egypt | ||||
| 2Algal Biotechnology Unit, Fertilization Technology Dept., National Research Centre, Giza, Egypt | ||||
| 3Food Science Dept., Fac. Agric., Ain Shams Univ., Cairo, Egypt | ||||
| Abstract | ||||
| Chlorella vulgaris belonging to Chlorophyta and Nannochloropsis oculata belonging to Chrythophytawere used in the currentstudy to evaluate whether their successive indoor growth using industrial food waste (okara) as a growth medium enriched with organic carbon and nitrogenThe basic nutrient solutions were BG-II for Chlorella, while F2 was used for Nannochloropsis growth. Okara was used in four concentrations ( 25 , 50 , 75 and 100% ) verses to control and based on its initial nitrogen content. Original waste was diluted by 4 fold of tape water prior inoculation. The investigated parameters were dry weigh (g.l-1); total chlorophyll (mg.l-1) and total carotenoids (mg.l-1). Maximum dry weight of Chlorella was obtained with 25% of okara waste. As for Nannochloropsis, a slight increase was observed with all okara concentrations used. Lower okara concentration (25%) enhanced chlorophyll accumulation by Chlorella vulgaris, while higher concentration (100%) reached the maximum with Nannochloropsis oculata. Completely opposite pattern was observed with total carotene. | ||||
| Keywords | ||||
| Okara; chlorophyta; Chrythophyta | ||||
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