Chemical and Biological Investigation of Organic Wastes of Frying Oils and Beef Fats: Valorization for Biodiesel Production

Souissi, Yasmine; Alouini, Meha; Mnif, Wissem

doi:10.1155/2018/6248047

Cited by 8 publications

(4 citation statements)

References 32 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Authors reported a biodiesel yield of 70% when using waste oil and 90% using soybean oil, which suggested that ultrasound technology and enzyme mixtures could be a promising route to reduce costs of biodiesel production. Souissi et al [25] evaluated the use of two low-cost feedstocks such as WFO and wastes of beef fats to produce biodiesel via both chemical and enzymatic transesterification and reported a richer FAME biodiesel with the biological method. Kumar et al [26] analyzed the feasibility of biodiesel production from hybrid oil using bio-support beads immobilized with lipase from Pseudomonas cepacia.…”

Section: Introductionmentioning

confidence: 99%

Enzymatic Transesterification of Waste Frying Oil from Local Restaurants in East Colombia Using a Combined Lipase System

Vela

Acevedo-Páez²,

Urbina-Suarez

et al. 2020

Applied Sciences

View full text Add to dashboard Cite

The search for innovation and biotechnological strategies in the biodiesel production chain have become a topic of interest for scientific community owing the importance of renewable energy sources. This work aimed to implement an enzymatic transesterification process to obtain biodiesel from waste frying oil (WFO). The transesterification was performed by varying reaction times (8 h, 12 h and 16 h), enzyme concentrations of lipase XX 25 split (14%, 16% and 18%), pH of reaction media (6, 7 and 8) and reaction temperature (35, 38 and 40 °C) with a fixed alcohol–oil molar ratio of 3:1. The optimum operating conditions were selected to quantify the amount of fatty acid methyl esters (FAMEs) generated. The highest biodiesel production was reached with an enzyme concentration of 14%, reaction time of 8 h, pH of 7 and temperature of 38 °C. It was estimated a FAMEs production of 42.86% for the selected experiment; however, best physicochemical characteristics of biodiesel were achieved with an enzyme concentration of 16% and reaction time of 8 h. Results suggested that enzymatic transesterification process was favorable because the amount of methyl esters obtained was similar to the content of fatty acids in the WFO.

show abstract

Section: Introductionmentioning

confidence: 99%

Enzymatic Transesterification of Waste Frying Oil from Local Restaurants in East Colombia Using a Combined Lipase System

Vela

Acevedo-Páez²,

Urbina-Suarez

et al. 2020

Applied Sciences

View full text Add to dashboard Cite

show abstract

“…This experiment showed that the transesterification of low-cost lipid feedstocks with low excess of methanol and without generation of glycerol is technically feasible, and it is likely to be used at an industrial scale. It was also concluded that the thermal decomposition of chicken fat is an important factor; however, it was found that this factor was not significant if heated up to 350 • C. Souissi et al (2018) [78] tested beef fats as raw material for biodiesel production. In this experiment, enzymatic and chemical transesterification were used, and it was concluded that although the biological method allowed them to obtain a FAME-richer biodiesel, by the chemical method, a biodiesel with better physicochemical properties was obtained.…”

Section: Fat Valorisation Systemsmentioning

confidence: 99%

Analysis of the Food Loss and Waste Valorisation of Animal By-Products from the Retail Sector

Pinto¹,

Boavida-Dias

Matos

et al. 2022

Sustainability

View full text Add to dashboard Cite

The meat industry generates a large amount of animal by-products not only derived from the slaughter process but also due to the losses and waste of meat products along the supply chain, contributing to the world’s food loss and waste problem. Yearly, 1.7 Mt of meat in the European retail sector and 20% of meat for consumption is wasted in this sector of the supply chain. Therefore, the aim of this paper was to find and evaluate alternatives for the valorisation of agri-food residues, more specifically the meat waste from the food retail sector, through a technological perspective. Thus, we delve into the industrial processes already implemented and the emerging procedures that use muscle, bones and fats by-products from poultry, cattle and pork as the main raw materials in order to identify and characterise them. The results indicate that in addition to the current destinations—landfill, incineration and the rendering process—these animal by-products can be incorporated in the production of biodiesel, food formulations, pharmaceuticals, fertilisers and biogas through an industrial symbiosis approach. Consequently, the several valorisation processes and procedures identified not only suggest an increase in concern about the impacts of the disposal of these materials, but also highlight the potential associated with the use of animal by-products as raw material to obtain added-value products.

show abstract

“…The cost of the raw material is a crucial aspect of biodiesel production, corresponding to at least 80% of the total cost of biofuel production (6). Therefore, various studies focus on the utilization of less expensive feedstocks, like non-edible oils, waste cooking oils, and animal fats (7)(8)(9)(10). However, these feedstocks have certain drawbacks, primarily attributed to their high content of free fatty acids (FFA), which are not suitable for the commonly employed homogeneous base-catalyzed transesteri cation process, due to the formation of soap, through the reaction of FFA with the catalyst, leading to catalyst deactivation (11).…”

Section: Introductionmentioning

confidence: 99%

Optimization of enzymatic transesterification of acid oils for biodiesel production using a low-cost lipase: the effect of transesterification conditions and the synergy of lipases with different regioselectivity

Moschona,

Spanou,

Pavlidis

et al. 2024

Preprint

View full text Add to dashboard Cite

This study describes the enzymatic production of 2nd generation biodiesel using low-quality acid oil as a substrate. Biolipasa-R, a commercially available and low-cost lipase, was employed for enzymatic transesterification. Response surface methodology was applied to optimize the enzymatic transesterification process. The optimal conditions for biodiesel production, which comprised 42% lipase concentration (per weight of oil), 32% water content (per weight of oil), a methanol to oil molar ratio of 3:1, pH 7.0 and reaction temperature 30oC, resulted in the highest fatty acid methyl ester (FAME) content (71.3%). Subsequently, the synergistic effect of two lipases with different regioselectivities, under the optimum transesterification conditions, was studied, aiming at the enhancement of process efficiency. The transesterification efficiency of immobilized Biolipasa-R was determined and compared to that of Biolipasa-R in its free form. The results revealed a good performance on FAME content (66.5%), while the recycling of immobilized lipase resulted in a decrease of transesterification efficiency after three consecutive uses.

show abstract

Chemical and Biological Investigation of Organic Wastes of Frying Oils and Beef Fats: Valorization for Biodiesel Production

Cited by 8 publications

References 32 publications

Enzymatic Transesterification of Waste Frying Oil from Local Restaurants in East Colombia Using a Combined Lipase System

Enzymatic Transesterification of Waste Frying Oil from Local Restaurants in East Colombia Using a Combined Lipase System

Analysis of the Food Loss and Waste Valorisation of Animal By-Products from the Retail Sector

Optimization of enzymatic transesterification of acid oils for biodiesel production using a low-cost lipase: the effect of transesterification conditions and the synergy of lipases with different regioselectivity

Contact Info

Product

Resources

About