Transesterification of Waste Cooking Sunflower Oil by Porcine Pancreas Lipase Using Response Surface Methodology for Biodiesel Production
بیوتکنولوژی غذایی کاربردی,
دوره 4 شماره 4 (2017),
23 سپتامبر 2017
,
صفحه 203-210
https://doi.org/10.22037/afb.v4i4.16904
چکیده
Background and Objective: Biodiesel production from recycled vegetable oils is considered as an economically acceptable alternative for fossil fuels in the recent years. In this work, porcine pancreas lipase as an active catalyst in transesterification reaction of waste cooking sunflower oil with methanol for biodiesel production was used.
Material and Methods: In order to define optimum process parameters and predict the best results, response surface methodology and the central composite design was performed. The effects of methanol to oil molar ratio, lipase concentration and reaction temperature on transesterification were investigated. Biodiesel production was carried out in 25 ml shake flasks at 180 rpm for 72 h.
Results and Conclusion: Under optimal conditions, the biodiesel yield was 75% which was nearly consistent with the predicted yield of 76%. At optimal conditions the molar ratio of methanol to oil, reaction temperature, and lipase percent were determined as 3:1, 44°C and 4.4%, respectively. Due to relatively high obtained yield, biodiesel production from waste cooking sunflower oil has provided a sound environmental and commercial process.
Conflict of interest: The authors declare no conflict of interest.
- ▪ Biodiesel ▪ Lipase ▪ Response surface methodology ▪ Transesterification ▪ Waste cooking sunflower oil
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