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https://hdl.handle.net/11147/5952
Title: | Utilization of orange peel, a food industrial waste, in the production of exo-polygalacturonase by pellet forming Aspergillus sojae | Authors: | Büyükkileci, Ali Oğuz Lahore, Marcelo Fernandez Tarı, Canan |
Keywords: | Aspergillus sojae Exo-polygalacturonase Food industry waste Low-cost medium Orange peel Pelletizing |
Publisher: | Springer Verlag | Source: | Büyükkileci, A. O., Lahore, M. F., and Tarı, C. (2015). Utilization of orange peel, a food industrial waste, in the production of exo-polygalacturonase by pellet forming Aspergillus sojae. Bioprocess and Biosystems Engineering, 38(4), 749-760. doi:10.1007/s00449-014-1315-1 | Abstract: | The production of exo-polygalacturonase (exo-PG) from orange peel (OP), a food industrial waste, using Aspergillus sojae was studied in submerged culture. A simple, low-cost, industrially significant medium formulation, composed of only OP and (NH4)2SO4 (AS) was developed. At an inoculum size of 2.8 × 103 spores/mL, growth was in the form of pellets, which provided better mixing of the culture broth and higher exo-PG activity. These pellets were successfully used as an inoculum for bioreactors and 173.0 U/mL exo-PG was produced. Fed-batch cultivation further enhanced the exo-PG activity to 244.0 U/mL in 127.5 h. The final morphology in the form of pellets is significant to industrial fermentation easing the subsequent downstream processing. Furthermore, the low pH trend obtained during this fermentation serves an advantage to fungal fermentations prone to contamination problems. As a result, an economical exo-PG production process was defined utilizing a food industrial by-product and producing high amount of enzyme. | URI: | https://doi.org/10.1007/s00449-014-1315-1 http://hdl.handle.net/11147/5952 |
ISSN: | 1615-7591 1615-7591 |
Appears in Collections: | Food Engineering / Gıda Mühendisliği PubMed İndeksli Yayınlar Koleksiyonu / PubMed Indexed Publications Collection Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection |
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