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  1. Article: Waste quail beaks as renewable source for synthesizing novel catalysts for biodiesel production

    Khan, Haris Mahmood / Iqbal, Tanveer / Ali, Chaudhry Haider / Yasin, Saima / Jamil, Farrukh

    Renewable energy. 2020 July, v. 154

    2020  

    Abstract: In the current study, waste biomass (quail beaks) has been considered for synthesizing highly active hydroxyapatite (HAp) catalyst and used for biodiesel production. The produced HAp is characterized by several analytical techniques such as ... ...

    Abstract In the current study, waste biomass (quail beaks) has been considered for synthesizing highly active hydroxyapatite (HAp) catalyst and used for biodiesel production. The produced HAp is characterized by several analytical techniques such as Thermogravimetric analysis/differential scanning calorimetry (TGA/DSC), X-ray diffraction (XRD), Fourier-transform infrared spectroscopy (FTIR), Scanning electron microscopy (SEM), Energy dispersive X-ray spectroscopy (EDX), Hammett indicator-benzene benzoic acid titration method and BET surface area. TGA/DSC analysis confirmed the complete removal of organic matter from the raw quail beaks. The XRD results revealed that the crystallinity of HAp phase was enhanced by thermal calcination with crystallite size of 37.33 nm at 900 °C. FTIR results showed the peaks of phosphate (PO4−3) and hydroxyl groups (OH−1) belonging to HAp molecules. EDX analysis revealed the presence of calcium (Ca) and phosphorus (P) compositions were 28.5 and 11.4 wt %, respectively. Total basicity and BET surface area of the synthesized catalyst were found to be 12.9 mmol/g and 4.54 m2/g, respectively. Furthermore, the treated HAp at temperature of 900 °C was used for biodiesel production from canola oil, rapeseed oil and waste cooking oil. Thus, HAp was opted to be highly active for biodiesel production with promising reusability.
    Keywords Fourier transform infrared spectroscopy ; X-ray diffraction ; benzoic acid ; biodiesel ; biomass ; calcium ; canola oil ; catalysts ; cooking fats and oils ; crystal structure ; crystallites ; differential scanning calorimetry ; energy-dispersive X-ray analysis ; fuel production ; hydroxyapatite ; kitchen waste ; organic matter ; phosphorus ; quails ; scanning electron microscopy ; surface area ; temperature ; thermogravimetry ; titration
    Language English
    Dates of publication 2020-07
    Size p. 1035-1043.
    Publishing place Elsevier Ltd
    Document type Article
    ZDB-ID 2001449-1
    ISSN 0960-1481
    ISSN 0960-1481
    DOI 10.1016/j.renene.2020.03.079
    Database NAL-Catalogue (AGRICOLA)

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  2. Article: Biodiesel production from waste cooking oil using onsite produced purified lipase from Pseudomonas aeruginosa FW_SH-1: Central composite design approach

    Ali, Chaudhry Haider / Abdul Sattar Qureshi / Bo-Zhong Mu / Jin-Feng Liu / Serge Maurice Mbadinga / Shi-Zhong Yang

    Renewable energy. 2017 Aug., v. 109

    2017  

    Abstract: Increasing energy demands, decreasing fossil fuel resources, instability of crude oil prices and pollution problems have compelled to switch over bio-based fuel for transportation, for example, biodiesel. In present study, waste cooking oil (WCO) was ... ...

    Abstract Increasing energy demands, decreasing fossil fuel resources, instability of crude oil prices and pollution problems have compelled to switch over bio-based fuel for transportation, for example, biodiesel. In present study, waste cooking oil (WCO) was evaluated as feedstock for biodiesel production using free lipase in liquid. The response surface methodology (RSM) was used to optimize the interaction between four factors: the reaction temperature, methanol-oil molar ratio, dosage of lipase as biocatalyst and rotational speed. Using this method, the model predicted the optimal conditions reaching up to 86% FAME yield with temperature 44.2 °C, methanol-oil molar ratio (3.05:1), amount of lipase 0.782 g and rotation speed of 170 rpm with incubation period of 24 h. The reactions carried out under optimized conditions confirmed the validity of the model. The use of WCO in lipase catalyzed process can diminish the cost of biodiesel production and will allow lowering the direct use of edible oils to produce biodiesel instead. Thus, present study shows great practical potential to replace fossil fuel with renewable fuel (biodiesel).
    Keywords biocatalysts ; biodiesel ; carboxylic ester hydrolases ; cooking fats and oils ; energy ; feedstocks ; fuel production ; models ; petroleum ; pollution ; prices ; Pseudomonas aeruginosa ; response surface methodology ; temperature ; transportation ; wastes
    Language English
    Dates of publication 2017-08
    Size p. 93-100.
    Publishing place Elsevier Ltd
    Document type Article
    ZDB-ID 2001449-1
    ISSN 0960-1481
    ISSN 0960-1481
    DOI 10.1016/j.renene.2017.03.018
    Database NAL-Catalogue (AGRICOLA)

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  3. Article ; Online: Production and Partial Characterization of

    Simair, Altaf Ahmed / Qureshi, Abdul Sattar / Khushk, Imrana / Ali, Chaudhry Haider / Lashari, Safia / Bhutto, Muhammad Aqeel / Mangrio, Ghulam Sughra / Lu, Changrui

    BioMed research international

    2017  Volume 2017, Page(s) 9173040

    Abstract: Amylase is an industrially important enzyme and applied in many industrial processes such as saccharification of starchy materials, food, pharmaceutical, detergent, and textile industries. This research work deals with the optimization of fermentation ... ...

    Abstract Amylase is an industrially important enzyme and applied in many industrial processes such as saccharification of starchy materials, food, pharmaceutical, detergent, and textile industries. This research work deals with the optimization of fermentation conditions for
    MeSH term(s) Bacillus/enzymology ; Bacillus/growth & development ; Batch Cell Culture Techniques ; Carbon/pharmacology ; Detergents/pharmacology ; Fermentation/drug effects ; Hydrogen-Ion Concentration ; Hydrolysis/drug effects ; Kinetics ; Molasses ; Nitrogen/pharmacology ; Temperature ; alpha-Amylases/biosynthesis
    Chemical Substances Detergents ; Carbon (7440-44-0) ; alpha-Amylases (EC 3.2.1.1) ; Nitrogen (N762921K75)
    Language English
    Publishing date 2017-01-12
    Publishing country United States
    Document type Journal Article
    ZDB-ID 2698540-8
    ISSN 2314-6141 ; 2314-6133
    ISSN (online) 2314-6141
    ISSN 2314-6133
    DOI 10.1155/2017/9173040
    Database MEDical Literature Analysis and Retrieval System OnLINE

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