Chicken feather hydrolysate as an inexpensive complex nitrogen source for PHA production byCupriavidus necatoron waste frying oils

2017 ◽  
Vol 65 (2) ◽  
pp. 182-188 ◽  
Author(s):  
P. Benesova ◽  
D. Kucera ◽  
I. Marova ◽  
S. Obruca
Keyword(s):  
Nitrogen Source ◽  
Chicken Feather ◽  
Frying Oils ◽  
Waste Frying Oils ◽  
Complex Nitrogen Source ◽  
Pha Production

Biodiesel Production:  Reaction and Process Parameters of Alkali-Catalyzed Transesterification of Waste Frying Oils

2007 ◽  
Vol 21 (5) ◽  
pp. 3023-3027 ◽  
Author(s):  
K. G. Georgogianni ◽  
M. G. Kontominas ◽  
E. Tegou ◽  
D. Avlonitis ◽  
V. Gergis
Keyword(s):  
Process Parameters ◽  
Biodiesel Production ◽  
Frying Oils ◽  
Waste Frying Oils

scholarly journals Pre-Treatment of Waste Frying Oils for Biodiesel Production

2015 ◽  
Vol 9 (7) ◽  
pp. 99 ◽  
Author(s):  
Nyoman Puspa Asri ◽  
Diah Agustina Puspita Sari
Keyword(s):  
Raw Materials ◽  
Batch Reactor ◽  
Biodiesel Production ◽  
Molar Ratio ◽  
High Price ◽  
Composite Catalyst ◽  
Frying Oils ◽  
Animal Fats ◽  
Waste Frying Oils ◽  
Pre Treatment

Synthesis of biodiesel is a strategic step in overcoming energy scarcity and the environmental degradationcaused by the continuous use of the petroleum based energy. Biodiesel as an alternative fuel for diesel engine isproduced from renewable resources such as vegetable oils and animal fats. The main obstacle in the biodieselproduction is the high price of the raw materials, resulting in the price of biodiesel is not competitive comparedto the petroleum diesel. Therefore, the use of waste frying oils (WFO) is one way to reduce the cost of biodieselproduction, because of its availability and low price. In the present work, WFO from California Fried chicken(CFC) restaurants in Surabaya were used as feed stock for the biodiesel production. The experiments wereconducted using three steps of processes: pre-treatment of WFO, preparation of alumina based compositecatalyst CaO/KI/γ-Al2O3 and transesterification of treated WFO. WFO was treated by several types and variousamounts of activated adsobents. The treated WFO was transesterified in three neck glass batch reactor withrefluxed methanol using CaO/KI/γ-Al2O3. The results reveal that the best method for treating WFO is using 7.5%(wt. % to WFO) of coconut coir. Alumina based composite catalyst CaO/KI/γ-Al2O3 was very promising fortransesterification of WFO into biodiesel. The yield of biodiesel was 83% and obtained at 65ºC, 5 h of reactiontime, 1:18 of molar ratio WFO to methanol and 6% amount of catalyst.

Acid Value, Polar Compounds and Polymers as Determinants of the Efficient Conversion of Waste Frying Oils to Biodiesel

2013 ◽  
Vol 91 (4) ◽  
pp. 655-664 ◽  
Author(s):  
Ignacio Vieitez ◽  
Nicolas Callejas ◽  
Bruno Irigaray ◽  
Yenny Pinchak ◽  
Natalie Merlinski ◽  
...  
Keyword(s):  
Acid Value ◽  
Polar Compounds ◽  
Frying Oils ◽  
Efficient Conversion ◽  
Waste Frying Oils

scholarly journals RSM–GA Based Optimization of Bacterial PHA Production and In Silico Modulation of Citrate Synthase for Enhancing PHA Production

Biomolecules ◽  
2019 ◽  
Vol 9 (12) ◽  
pp. 872 ◽  
Author(s):  
Apoorva Rao ◽  
Shafiul Haque ◽  
Hesham A. El-Enshasy ◽  
Vineeta Singh ◽  
Bhartendu Nath Mishra
Keyword(s):  
Molecular Docking ◽  
Nitrogen Source ◽  
In Silico ◽  
Citrate Synthase ◽  
Tca Cycle ◽  
Management Approach ◽  
Carbon And Nitrogen ◽  
The Tca Cycle ◽  
Different Types ◽  
Pha Production

The inexhaustible nature and biodegradability of bioplastics like polyhydroxyalkanoates (PHAs) make them suitable assets to replace synthetic plastics. The eventual fate of these eco-friendly and non-toxic bioplastics relies upon the endeavors towards satisfying cost and, in addition, execution necessity. In this study, we utilized and statistically optimized different food (kitchen-/agro-) waste as a sole carbon/nitrogen source for the production of PHA at a reduced cost, indicating a proficient waste administration procedure. Seven different types of kitchen-/agro-waste were used as unique carbon source and four different types of nitrogen source were used to study their impact on PHA production by Bacillus subtilis MTCC 144. Among four different studied production media, mineral salt medium (MSM) (biomass: 37.7 g/L; cell dry weight: 1.8 g/L; and PHA: 1.54 g/L) was found most suitable for PHA production. Further, carbon and nitrogen components of MSM were optimized using one-factor-at-a-time experiments, and found that watermelon rind (PHA = 12.97 g/L) and pulse peel (PHA = 13.5 g/L) were the most suitable carbon and nitrogen sources, respectively, in terms of PHA (78.60%) recovery. The concentrations of these factors (sources) were statistically optimized using response surface methodology coupled with the genetic algorithm approach. Additionally, in order to enhance microbial PHA production, the interaction of citrate synthase, a key enzyme in the TCA cycle, with different known inhibitors was studied using in silico molecular docking approach. The inhibition of citrate synthase induces the blockage of the tricarboxylic cycle (TCA), thereby increasing the concentration of acetyl-CoA that helps in enhanced PHA production. Molecular docking of citrate synthase with different inhibitors of PubChem database revealed that hesperidin (PubChem compound CID ID 10621), generally present in citrus fruits, is the most efficient inhibitor of the TCA cycle with the binding score of –11.4 and warrants experimental validation. Overall, this study provides an efficient food waste management approach by reducing the production cost and enhancing the production of PHA, thereby lessening our reliance on petroleum-based plastics.

Production of biodiesel from waste frying oils

2006 ◽  
Vol 26 (5) ◽  
pp. 487-494 ◽  
Author(s):  
Pedro Felizardo ◽  
M. Joana Neiva Correia ◽  
Idalina Raposo ◽  
João F. Mendes ◽  
Rui Berkemeier ◽  
...  
Keyword(s):  
Frying Oils ◽  
Waste Frying Oils

Tetramethylguanidine as an efficient catalyst for transesterification of waste frying oils

2011 ◽  
Vol 88 (11) ◽  
pp. 3645-3650 ◽  
Author(s):  
Georgios Karavalakis ◽  
Georgios Anastopoulos ◽  
Stamos Stournas
Keyword(s):  
Efficient Catalyst ◽  
Frying Oils ◽  
Waste Frying Oils

Rhamnolipids: Highly Compatible Surfactants for the Enzymatic Hydrolysis of Waste Frying Oils in Microemulsion Systems

2017 ◽  
Vol 5 (8) ◽  
pp. 6768-6775 ◽  
Author(s):  
Ignacio Moya-Ramírez ◽  
Miguel García-Román ◽  
Alejandro Fernández-Arteaga
Keyword(s):  
Enzymatic Hydrolysis ◽  
Frying Oils ◽  
Waste Frying Oils ◽  
Hydrolysis Of

Predicting the higher heating values of waste frying oils as potential biodiesel feedstock

Fuel ◽  
2014 ◽  
Vol 115 ◽  
pp. 850-854 ◽  
Author(s):  
Huseyin Sanli ◽  
Mustafa Canakci ◽  
Ertan Alptekin
Keyword(s):  
Frying Oils ◽  
Waste Frying Oils ◽  
Biodiesel Feedstock
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