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Paper Spray Tandem Mass Spectrometry for Assessing Oleic, Linoleic and Linolenic Acid Content in Edible Vegetable Oils. SEPARATIONS 2023. [DOI: 10.3390/separations10010026] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023] Open
Abstract
Oleic, linoleic and linolenic acids exert several beneficial effects on human health, some of which are also certified by recent European and U.S. regulations. The goal of the presented work was to develop an innovative methodology to evaluate their content in edible vegetable oils, in order to increase the value of oils from a nutraceutical perspective. The protocol is based on the use of paper spray ionization coupled with tandem mass spectrometry experiments, which allowed the recording of data very quickly and with high specificity. All investigated compounds gained a good linear relation (r2 higher than 0.98). Accuracy values are near 100% for all concentration levels examined, and the repeatability and reproducibility data result lower than 15%, highlighting the consistence of the methodology. The developed approach was successfully applied for the analysis of different real samples, and its robustness was confirmed by comparing the results obtained with those coming from the classical and official methodology.
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Lemos ASO, Campos LM, Souza TF, Paula PL, Da Silva JVG, Coimbra ES, Hottz ED, Dib PRB, Aguiar JAK, Grazul RM, Chedier LM, Fabri RL. Isolation and Chemical Characterization of Antifungal, Antioxidant, and Anti-Inflammatory Compounds from Centrosema coriaceum using GC/MS, UFLC-QTOF-MS, and FACE. Chem Biodivers 2023; 20:e202200624. [PMID: 36479817 DOI: 10.1002/cbdv.202200624] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2022] [Revised: 11/18/2022] [Accepted: 12/06/2022] [Indexed: 12/12/2022]
Abstract
In recent years, natural products with biological activities have been increasingly researched. The elucidation of phytoconstituents is necessary for the development of drugs as a natural alternative for the treatment of various diseases. The work aimed to evaluate in vitro and in silico bioactivities of hexane (CCHE) and methanol (CCME) fractions of ethanolic extract from Centrosema coriaceum Benth (Fabaceae) leaves and elucidate their phytoconstituents. CCHE and CCME showed antifungal activity for Candida glabrata (MIC of 1000 μg/mL) with fungistatic effect and action in cell envelope by sorbitol and ergosterol assays. CCHE and CCME presented promising antioxidant activity against the DPPH radical with IC50 of 13.61±0.50 and 6.31±0.40 μg/mL, respectively, and relative antioxidant activity (RAA%) of 45.77±3.61/ 28.53±2.25 % for CCHE and 82.18±2.25/51.99±3.23 % for CCME when compared to rutin and quercetin, respectively. Moreover, these fractions demonstrated promising results for the inhibition of lipid peroxidation by β-carotene/linoleic acid assay. For anti-inflammatory and cytotoxicity activities, CCHE and CCME significantly inhibited the production of nitric oxide and TNF-α, without toxicity on murine intraperitoneal macrophages, respectively. Esters, alkanes, steroids, tocopherols, and terpenes were identified in CCHE by GC/MS. Flavonoids, phenolic acids, and disaccharides were detected in CCME by UFLC-QTOF-MS and FACE. Furthermore, rutin was purified from CCME. In silico predictions evidenced that compounds present in both fractions have high affinity to the fungal membrane besides antioxidant and anti-inflammatory activities. Based on these observations, CCHE and CCME have a noteworthy potential for the design of novel antifungal and anti-inflammatory agents that should be explored in future studies.
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Affiliation(s)
- Ari S O Lemos
- Laboratory of Bioactive Natural Products, Department of Biochemistry, Institute of Biological Sciences, Federal University of Juiz de Fora, Juiz de Fora, Minas Gerais, CEP 36036-900, Brazil
| | - Lara M Campos
- Laboratory of Bioactive Natural Products, Department of Biochemistry, Institute of Biological Sciences, Federal University of Juiz de Fora, Juiz de Fora, Minas Gerais, CEP 36036-900, Brazil
| | - Thalita F Souza
- Laboratory of Bioactive Natural Products, Department of Biochemistry, Institute of Biological Sciences, Federal University of Juiz de Fora, Juiz de Fora, Minas Gerais, CEP 36036-900, Brazil
| | - Priscila L Paula
- Laboratory of Bioactive Natural Products, Department of Biochemistry, Institute of Biological Sciences, Federal University of Juiz de Fora, Juiz de Fora, Minas Gerais, CEP 36036-900, Brazil
| | - João Victor G Da Silva
- Glycoconjugate Analysis Laboratory, Department of Biochemistry, Biological Sciences Institute, Federal University of Juiz de Fora, Juiz de Fora, Minas Gerais, CEP 36036-900, Brazil
| | - Elaine S Coimbra
- Department of Parasitology, Microbiology and Immunology - Federal University of Juiz de Fora, Juiz de Fora, MG 36036-900, Brazil
| | - Eugenio D Hottz
- Laboratory of Immunothrombosis, Department of Biochemistry, Institute of Biological Sciences, Federal University of Juiz de For a, MG, Brazil
| | - Paula R B Dib
- Laboratory of Immunothrombosis, Department of Biochemistry, Institute of Biological Sciences, Federal University of Juiz de For a, MG, Brazil
| | - Jair A K Aguiar
- Glycoconjugate Analysis Laboratory, Department of Biochemistry, Biological Sciences Institute, Federal University of Juiz de Fora, Juiz de Fora, Minas Gerais, CEP 36036-900, Brazil
| | - Richard M Grazul
- Department of Chemistry, Institute of Exact Sciences, Federal University of Juiz de Fora, Juiz de Fora, Minas Gerais, CEP 36036-900, Brazil
| | - Luciana M Chedier
- Departament of Botany, Institute of Biological Sciences, Federal University of Juiz de Fora, Juiz de Fora, Minas Gerais, CEP 36036-900, Brazil
| | - Rodrigo L Fabri
- Laboratory of Bioactive Natural Products, Department of Biochemistry, Institute of Biological Sciences, Federal University of Juiz de Fora, Juiz de Fora, Minas Gerais, CEP 36036-900, Brazil
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Guo X, Wang R. Analysis of Dynamic Changes of Lipid Composition and Structure of Deep‐Fried Pork Slices during Storage. EUR J LIPID SCI TECH 2021. [DOI: 10.1002/ejlt.202100049] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Xi‐Juan Guo
- College of Food Science Heilongjiang Bayi Agricultural University Daqing 163319 China
- Heilongjiang Engineering Research Center for Coarse Cereals Processing and Quality Safety Daqing 163319 China
| | - Rui‐Qi Wang
- College of Food Science Heilongjiang Bayi Agricultural University Daqing 163319 China
- Heilongjiang Engineering Research Center for Coarse Cereals Processing and Quality Safety Daqing 163319 China
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Pattnaik M, Mishra HN. Oxidative stability of ternary blends of vegetable oils: A chemometric approach. Lebensm Wiss Technol 2021. [DOI: 10.1016/j.lwt.2021.111018] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Effect of Storage Time on the Physicochemical Properties of Waste Fish Oils and Used Cooking Vegetable Oils. ENERGIES 2020. [DOI: 10.3390/en14010101] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Waste fish oils (FOs) and used cooking vegetable oils (UCOs) are increasingly becoming alternative renewable fuels. However, different physicochemical aspects of these renewable fuels, including the effect of storage, are not well-known. In this work, the effect of the storage period on physicochemical properties of selected samples of FOs and UCOs was investigated. The bio-oils were stored at 4 °C for up to five years before each experimentation. The chemical properties were characterized using capillary gas chromatography with flame ionization detection (GC-FID) and high-performance size exclusion chromatography including an evaporative light scattering detector (HPSEC-ELSD). Water contents and acid numbers of the bio-oils were determined using the Karl Fischer (KF) titration and the ASTM D 664 methods. Furthermore, the average heating values and surface tension of the bio-oils were determined. According to the results obtained, for all bio-oil types, the concentrations of polymerized triglycerides, diglycerides, and fatty acids and monoglycerides had increased during the storage periods. The physical properties of the bio-oils also showed a small variation as a function of the storage period. The overall results observed indicate that the deterioration of the physicochemical properties of bio-oils can be controlled through storage in dark, dry, and cold conditions.
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Yang L, Li D, Zhang L, Yan X, Ran J, Wang Y, Zhang H. On the utilization of waste fried oil as flotation collector to remove carbon from coal fly ash. WASTE MANAGEMENT (NEW YORK, N.Y.) 2020; 113:62-69. [PMID: 32505976 DOI: 10.1016/j.wasman.2020.05.045] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/19/2020] [Revised: 05/10/2020] [Accepted: 05/28/2020] [Indexed: 06/11/2023]
Abstract
In this paper, the waste fried oil was used to remove the unburned carbon in coal fly ash during flotation process, and found that the waste fried oil could be a novel collector for the removal of carbon from coal fly ash. The results implied that the wetting rate of the fly ash after treated by waste fried oil was decreased, meanwhile the contact angle was increased. A significant decrease in wetting heat was observed, which indicated a weaker interaction between deionized water and fly ash after treatment with waste fried oil. Flotation tests showed that the content of unburned carbon could be reduced effectively through froth flotation when took waste fried oil as collector. FTIR analysis testified that waste fried oil had abundant oxygen-containing groups that could be adsorbed in a carbonaceous matter to achieve hydrophobization. X-ray photoelectron spectroscopy, scanning electron microscope, and energy dispersive analyses showed that the main compositions of flotation concentrate products were unburned carbon, whereas the tailing products consist of aluminum and silicon, which confirmed the superior separation performance when the waste fried oil was used as a collector in coal fly ash flotation. This investigation provides an approach to remove the unburned carbon in coal fly ash based on the principle of "waste control through waste", which can solve the environmental problems brought by large amounts of both coal fly ash and waste fried oils.
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Affiliation(s)
- Lu Yang
- Chinese National Engineering Research Center for Coal Preparation and Purification, China University of Mining and Technology, Xuzhou 221116, China; School of Chemical Engineering and Technology, China University of Mining and Technology, Xuzhou 221116, China
| | - Danlong Li
- Chinese National Engineering Research Center for Coal Preparation and Purification, China University of Mining and Technology, Xuzhou 221116, China; School of Chemical Engineering and Technology, China University of Mining and Technology, Xuzhou 221116, China
| | - Ling Zhang
- School of Environment and Resource, Southwest University of Science and Technology, Mianyang 621010, China
| | - Xiaokang Yan
- Chinese National Engineering Research Center for Coal Preparation and Purification, China University of Mining and Technology, Xuzhou 221116, China; School of Chemical Engineering and Technology, China University of Mining and Technology, Xuzhou 221116, China
| | - Jincai Ran
- Chinese National Engineering Research Center for Coal Preparation and Purification, China University of Mining and Technology, Xuzhou 221116, China
| | - Yongtian Wang
- Chinese National Engineering Research Center for Coal Preparation and Purification, China University of Mining and Technology, Xuzhou 221116, China
| | - Haijun Zhang
- Chinese National Engineering Research Center for Coal Preparation and Purification, China University of Mining and Technology, Xuzhou 221116, China.
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Widayat W, Hadiyanto H, Wardani PWA, Az Zuhra U, Prameswari J. Preparation of KI/Hydroxyapatite Catalyst from Phosphate Rocks and Its Application for Improvement of Biodiesel Production. Molecules 2020; 25:molecules25112565. [PMID: 32486458 PMCID: PMC7321259 DOI: 10.3390/molecules25112565] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2020] [Revised: 05/08/2020] [Accepted: 05/18/2020] [Indexed: 11/16/2022] Open
Abstract
The main aim of this work was to investigate the suitability of a KI/KIO3 impregnated hydroxyapatite (HAP) catalyst derived from natural phosphate rocks for biodiesel production. This study evaluated the effect of impregnation concentrations (1-6% w/w) on the catalyst performance in biodiesel production. The biodiesel was produced from waste cooking oil (WCO) under simultaneous esterification-transesterification reactions at 60 °C for 6 h. The results showed that the biodiesel yield increased by increasing impregnation concentration and the maximum yield (91.787%) was achieved at an impregnation concentration of 5% w/w. The KI/HAP catalyst showed better performance (91.78% biodiesel yield, 59.1% FAME yield and surface area of 13.513 m2/g) as compared to the KIO3/HAP catalyst (90.07% biodiesel yield, 55.0% FAME yield and surface area of 10.651 m2/g).
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Affiliation(s)
- Widayat Widayat
- Chemical Engineering Department, Faculty of Engineering, Diponegoro University, Semarang 50271, Indonesia; (P.W.A.W.); (U.A.Z.)
- Center of Biomass and Renewable Energy, Diponegoro University, Semarang 50271, Indonesia
- Advanced Materials Research Laboratory, Diponegoro University, Semarang 50271, Indonesia
- Correspondence: (W.W.); (H.H.); (J.P.)
| | - Hadiyanto Hadiyanto
- Chemical Engineering Department, Faculty of Engineering, Diponegoro University, Semarang 50271, Indonesia; (P.W.A.W.); (U.A.Z.)
- Center of Biomass and Renewable Energy, Diponegoro University, Semarang 50271, Indonesia
- Correspondence: (W.W.); (H.H.); (J.P.)
| | - Permadi Wisnu Aji Wardani
- Chemical Engineering Department, Faculty of Engineering, Diponegoro University, Semarang 50271, Indonesia; (P.W.A.W.); (U.A.Z.)
| | - Ummi Az Zuhra
- Chemical Engineering Department, Faculty of Engineering, Diponegoro University, Semarang 50271, Indonesia; (P.W.A.W.); (U.A.Z.)
| | - Jedy Prameswari
- Chemical Engineering Department, Faculty of Engineering, Diponegoro University, Semarang 50271, Indonesia; (P.W.A.W.); (U.A.Z.)
- Center of Biomass and Renewable Energy, Diponegoro University, Semarang 50271, Indonesia
- Correspondence: (W.W.); (H.H.); (J.P.)
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Ruiz C, Kenny ST, Narancic T, Babu R, Connor KO. Conversion of waste cooking oil into medium chain polyhydroxyalkanoates in a high cell density fermentation. J Biotechnol 2019; 306:9-15. [DOI: 10.1016/j.jbiotec.2019.08.020] [Citation(s) in RCA: 40] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2019] [Revised: 08/20/2019] [Accepted: 08/30/2019] [Indexed: 11/30/2022]
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PTG-HEFA Hybrid Refinery as Example of a SynBioPTx Concept—Results of a Feasibility Analysis. APPLIED SCIENCES-BASEL 2019. [DOI: 10.3390/app9194047] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Limited alternative fuels for a CO2-neutral aviation sector have already been ASTM certified; synthetic paraffinic kerosene from hydrotreated esters and fatty acids (HEFA-SPK) is one of these—a sustainable aviation fuel. With the hypothesis to improve the greenhouse gas (GHG) balance of a HEFA plant by realizing the required hydrogen supply via electrolysis—power to gas (PTG)—an exemplary SynBioPTx approach is investigated in a comprehensive feasibility study, which is, regarding this comparatively new approach, a novelty in its extent. About 10 scenarios are analysed by technical, environmental, and economic aspects. Within the alternative scenarios on feedstocks, electricity supply, necessary hydrogen supply, and different main products are analysed. For different plant designs of the hybrid refinery, mass and energy balances are elaborated, along with the results of the technical assessment. As a result of this environmental assessment, the attainment of at least 50% GHG mitigation might be possible. GHG highly depends on the renewability grade of the hydrogen provision as well as on the used feedstock. One important conclusion of this economic assessment is that total fuel production costs of 1295 to 1800 EUR t−1 are much higher than current market prices for jet fuel. The scenario in which hydrogen is produced by steam reforming of internally produced naphtha proves to be the best combination of highly reduced GHG emissions and low HEFA-SPK production costs.
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Md Badrul Hisham NH, Ibrahim MF, Ramli N, Abd-Aziz S. Production of Biosurfactant Produced from Used Cooking Oil by Bacillus sp. HIP3 for Heavy Metals Removal. Molecules 2019; 24:E2617. [PMID: 31323813 PMCID: PMC6681096 DOI: 10.3390/molecules24142617] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2019] [Revised: 06/13/2019] [Accepted: 06/14/2019] [Indexed: 02/02/2023] Open
Abstract
Heavy metals from industrial effluents and sewage contribute to serious water pollution in most developing countries. The constant penetration and contamination of heavy metals into natural water sources may substantially raise the chances of human exposure to these metals through ingestion, inhalation, or skin contact, which could lead to liver damage, cancer, and other severe conditions in the long term. Biosurfactant as an efficient biological surface-active agent may provide an alternative solution for the removal of heavy metals from industrial wastes. Biosurfactants exhibit the properties of reducing surface and interfacial tension, stabilizing emulsions, promoting foaming, high selectivity, and specific activity at extreme temperatures, pH, and salinity, and the ability to be synthesized from renewable resources. This study aimed to produce biosurfactant from renewable feedstock, which is used cooking oil (UCO), by a local isolate, namely Bacillus sp. HIP3 for heavy metals removal. Bacillus sp. HIP3 is a Gram-positive isolate that gave the highest oil displacement area with the lowest surface tension, of 38 mN/m, after 7 days of culturing in mineral salt medium and 2% (v/v) UCO at a temperature of 30 °C and under agitation at 200 rpm. An extraction method, using chloroform:methanol (2:1) as the solvents, gave the highest biosurfactant yield, which was 9.5 g/L. High performance liquid chromatography (HPLC) analysis confirmed that the biosurfactant produced by Bacillus sp. HIP3 consists of a lipopeptide similar to standard surfactin. The biosurfactant was capable of removing 13.57%, 12.71%, 2.91%, 1.68%, and 0.7% of copper, lead, zinc, chromium, and cadmium, respectively, from artificially contaminated water, highlighting its potential for bioremediation.
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Affiliation(s)
- Nurul Hanisah Md Badrul Hisham
- Department of Bioprocess Technology, Faculty of Biotechnology and Biomolecular Sciences, Universiti Putra Malaysia, 43400 UPM Serdang, Malaysia
| | - Mohamad Faizal Ibrahim
- Department of Bioprocess Technology, Faculty of Biotechnology and Biomolecular Sciences, Universiti Putra Malaysia, 43400 UPM Serdang, Malaysia
| | - Norhayati Ramli
- Department of Bioprocess Technology, Faculty of Biotechnology and Biomolecular Sciences, Universiti Putra Malaysia, 43400 UPM Serdang, Malaysia
| | - Suraini Abd-Aziz
- Department of Bioprocess Technology, Faculty of Biotechnology and Biomolecular Sciences, Universiti Putra Malaysia, 43400 UPM Serdang, Malaysia.
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Santya G, Maheswaran T, Yee KF. Optimization of biodiesel production from high free fatty acid river catfish oil (Pangasius hypothalamus) and waste cooking oil catalyzed by waste chicken egg shells derived catalyst. SN APPLIED SCIENCES 2019. [DOI: 10.1007/s42452-018-0155-z] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
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Phytochemical composition and antioxidant characteristics of traditional cold pressed seed oils in South India. BIOCATALYSIS AND AGRICULTURAL BIOTECHNOLOGY 2019. [DOI: 10.1016/j.bcab.2018.12.018] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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Sun W, Li W, Ji X, Li H, Qin K, Wei Y. Cold-Adapted Bacterial Diversity in Mingyong Glacier based on Combination Analysis of Fatty Acids and 16S rRNA Gene Sequence. Microbiology (Reading) 2018. [DOI: 10.1134/s0026261718060164] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023] Open
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Armah-Agyeman G, Gyamerah M, Biney PO, Woldesenbet S. Extraction and characterization of triglycerides from coffeeweed and switchgrass seeds as potential feedstocks for biodiesel production. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2016; 96:4390-4397. [PMID: 26805469 DOI: 10.1002/jsfa.7649] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/07/2015] [Revised: 01/17/2016] [Accepted: 01/19/2016] [Indexed: 06/05/2023]
Abstract
BACKGROUND Although switchgrass has been developed as a biofuel feedstock and its potential for bioethanol and bio-oil from fast pyrolysis reported in the literature, the use of the seeds of switchgrass as a source of triglycerides for biodiesel production has not been reported. Similarly, the potential for extracting triglycerides from coffeeweed (an invasive plant of no current economic value) needs to be investigated to ascertain its potential economic use for biodiesel production. RESULTS The results show that coffeeweed and switchgrass seeds contain known triglycerides which are 983 and 1000 g kg(-1) respectively of the fatty acids found in edible vegetable oils such as sunflower, corn and soybean oils. In addition, the triglyceride yields of 53-67 g kg(-1) of the seed samples are in the range of commercial oil-producing seeds such as corn (42 g kg(-1) ). CONCLUSION The results also indicate that the two non-edible oils could be used as substitutes for edible oil for biodiesel production. In addition, the use of seeds of switchgrass for non-edible oil production (as a feedstock for the production of biodiesel) further increases the total biofuel yield when switchgrass is cultivated for use as energy feedstock for pyrolysis oil and biodiesel production. © 2016 Society of Chemical Industry.
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Affiliation(s)
- Grace Armah-Agyeman
- NSF CREST Center for Energy & Environmental Sustainability, Roy G. Perry College of Engineering, PO Box 519, MS 2500, Prairie View A&M University, Prairie View, TX, 77446, USA
- Department of Animal and Plant Sciences, 122 Rockland Lane, SUNY-Cobleskill, Cobleskill, NY, 12043, USA
| | - Michael Gyamerah
- NSF CREST Center for Energy & Environmental Sustainability, Roy G. Perry College of Engineering, PO Box 519, MS 2500, Prairie View A&M University, Prairie View, TX, 77446, USA
- Department of Chemical Engineering, PO Box 519, MS 2505, Prairie View A&M University, Prairie View, TX, 77446, USA
| | - Paul O Biney
- NSF CREST Center for Energy & Environmental Sustainability, Roy G. Perry College of Engineering, PO Box 519, MS 2500, Prairie View A&M University, Prairie View, TX, 77446, USA
- Department of Mechanical Engineering, PO Box 519, MS 2525, Prairie View A&M University, Prairie View, TX, 77446, USA
| | - Selamawit Woldesenbet
- Cooperative Agricultural Research Center, Prairie View A&M University, Prairie View, TX, 77446, USA
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Muangwong A, Boontip T, Pachimsawat J, Napathorn SC. Medium chain length polyhydroxyalkanoates consisting primarily of unsaturated 3-hydroxy-5-cis-dodecanoate synthesized by newly isolated bacteria using crude glycerol. Microb Cell Fact 2016; 15:55. [PMID: 26988857 PMCID: PMC4797247 DOI: 10.1186/s12934-016-0454-2] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2016] [Accepted: 03/09/2016] [Indexed: 11/11/2022] Open
Abstract
Background Our study aimed to search for novel bacteria capable of producing polyhydroxyalkanoates (PHAs) using crude glycerol residue obtained from biodiesel production in which used cooking oils were the substrates. Results Newly isolated bacteria from soils in Thailand were screened for the efficient production of PHAs from crude glycerol. The bacterial strains were cultivated on glucose, refined glycerol, crude glycerol, or various cooking oils (canola oil, palm oil, soybean oil, sunflower oil, corn oil, grape seed oil, olive oil, rice bran oil, camellia seed oil) for growth and PHA production. The effects of the total organic carbon (TOC) concentration and the mole ratio of carbon to nitrogen were investigated in batch cultivation. 1H NMR, two dimensional-1H-correlation spectroscopy (2D-1H-COSY) and 13C NMR analyses confirmed four bacterial strains were capable of producing medium-chain-length PHAs (mcl-PHAs), consisting of 3-hydroxyoctanoate (3HO) and 3-hydroxy-5-cis-dodecanoate (3H5DD), from crude glycerol. On the basis of phenotypic features and genotypic investigations, the bacterial strains were assigned as: ASC1, Acinetobacter genus (94.9 % similarity); ASC2, Pseudomonas genus (99.2 % similarity); ASC3, Enterobacter genus (99.2 % similarity); ASC4, Bacillus genus (98.4 % similarity). The highest amount of mcl-PHAs, 17.5 ± 0.8 g/L (content 61.8 ± 3.3 % wt), with 3HO (14.7 ± 2.2 mol %), 3H5DD (85.3 ± 2.2 mol %), and a total biomass of 32.3 ± 0.3 g/L, was obtained from Pseudomonas sp. ASC2 in batch cultivation after 36 h. The mcl-PHAs recovered had a number-average molecular weight (MN) of 3.6 × 104 Da. Homopolymeric 3H5DD was obtained when the cultivation time was prolonged to 96 h. Conclusions Novel PHA-producing strains were isolated and identified. These bacterial strains are able to produce mcl-PHAs from crude glycerol. The mcl-PHAs produced contained a high percentage of 3H5DD, which suggests their future application as softeners mixed with other biomaterials. The unsaturated side chain of 3H5DD monomers containing double bounds offers additional potential for improving the properties of the mcl-PHAs or extending their applications to the food industry.
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Affiliation(s)
- Amtiga Muangwong
- Department of Microbiology, Faculty of Science, Chulalongkorn University, Phayathai Road, Patumwan, Bangkok, 10330, Thailand
| | - Thanawat Boontip
- Department of Microbiology, Faculty of Science, Chulalongkorn University, Phayathai Road, Patumwan, Bangkok, 10330, Thailand
| | - Jittakan Pachimsawat
- Program in Biotechnology, Faculty of Science, Chulalongkorn University, Phayathai Road, Patumwan, Bangkok, 10330, Thailand
| | - Suchada Chanprateep Napathorn
- Department of Microbiology, Faculty of Science, Chulalongkorn University, Phayathai Road, Patumwan, Bangkok, 10330, Thailand. .,Program in Biotechnology, Faculty of Science, Chulalongkorn University, Phayathai Road, Patumwan, Bangkok, 10330, Thailand.
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Wang L, Guo H, Chen X, Huang Y, Ren L, Ding S. Kinetic study of the hydrogenation of a monoterpene over spent FCC catalyst-supported nickel. CAN J CHEM ENG 2015. [DOI: 10.1002/cjce.22277] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Linlin Wang
- School of Chemistry and Chemical Engineering; Guangxi University; Key Laboratory for the Petrochemical Resources Processing and Process Intensification Technology of Guangxi; Nanning, 530004 P. R. China
| | - Huiqing Guo
- School of Chemistry and Chemical Engineering; Guangxi University; Key Laboratory for the Petrochemical Resources Processing and Process Intensification Technology of Guangxi; Nanning, 530004 P. R. China
| | - Xiaopeng Chen
- School of Chemistry and Chemical Engineering; Guangxi University; Key Laboratory for the Petrochemical Resources Processing and Process Intensification Technology of Guangxi; Nanning, 530004 P. R. China
| | - Yingying Huang
- School of Chemistry and Chemical Engineering; Guangxi University; Key Laboratory for the Petrochemical Resources Processing and Process Intensification Technology of Guangxi; Nanning, 530004 P. R. China
| | - Lu Ren
- School of Chemistry and Chemical Engineering; Guangxi University; Key Laboratory for the Petrochemical Resources Processing and Process Intensification Technology of Guangxi; Nanning, 530004 P. R. China
| | - Shengfang Ding
- School of Chemistry and Chemical Engineering; Guangxi University; Key Laboratory for the Petrochemical Resources Processing and Process Intensification Technology of Guangxi; Nanning, 530004 P. R. China
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Cruz MV, Sarraguça MC, Freitas F, Lopes JA, Reis MA. Online monitoring of P(3HB) produced from used cooking oil with near-infrared spectroscopy. J Biotechnol 2015; 194:1-9. [DOI: 10.1016/j.jbiotec.2014.11.022] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2014] [Revised: 11/20/2014] [Accepted: 11/24/2014] [Indexed: 11/28/2022]
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