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Khider M, Seliem KAEH, Ebid WMA. Development of Functional Synbiotic Flavored Fermented Skim Milk Drinks Supplemented with Doum (<i>Hyphaene thebaica</i> L.) and Carob (<i>Ceratonia siliqua</i>) Fruits Powder for Nutritional, Antimicrobial and High Antioxidant Activities. FOOD AND NUTRITION SCIENCES 2022; 13:878-905. [DOI: 10.4236/fns.2022.1311063] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/02/2023]
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2
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Mehta K, Shukla A, Saraf M. Articulating the exuberant intricacies of bacterial exopolysaccharides to purge environmental pollutants. Heliyon 2021; 7:e08446. [PMID: 34877428 PMCID: PMC8628041 DOI: 10.1016/j.heliyon.2021.e08446] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2021] [Revised: 09/23/2021] [Accepted: 11/17/2021] [Indexed: 11/19/2022] Open
Abstract
Microbial exopolysaccharide (EPS) is composed of a mixture of macromolecules such as proteins, polysaccharides, humic-like compounds, and nucleic acids, which encase microbial cells in a three-dimensional matrix. The literature shows that the EPS possess significant properties such as renewable, biodegradable, eco-friendly, non-toxic, and economically valued product, representing it as a green alternative to the synthetic polymer. The cost-effective and green synthesis of the EPS must be encouraged by using agro-waste as a raw material. The main objective of the manuscript is to provide a comprehensive update on the various aspects pertaining to EPS, including the economic aspects of EPS production, provide an insight into the latest tools and techniques used for detailed structural EPS characterization along with updates in the integration of CRISPR/Cas9 technology for engineering the modification in EPS production, the role of newly discovered EPR3 as a signalling molecule in plant growth-promoting properties (PGP) or agricultural microbiology. Furthermore, the EPS achieved prospective interest prevailing potential environmental issues which can be subject to EPS treatment including, landfill leachate treatment, decolourization of dye from the effluent or waste generated by an industry, removal of radionuclides, heavy metals and toxic compounds from the various environments (aquatic and terrestrial), industry effluents, waste waters etc. are comprehensively discussed.
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Affiliation(s)
- Krina Mehta
- Department of Microbiology & Biotechnology, University School of Sciences, Gujarat University, Ahmedabad 380009, Gujarat, India
| | - Arpit Shukla
- Department of Biological Sciences and Biotechnology, Institute of Advanced Research, University of Innovation, Koba Institutional Area, Gandhinagar 382426, Gujarat, India
| | - Meenu Saraf
- Department of Microbiology & Biotechnology, University School of Sciences, Gujarat University, Ahmedabad 380009, Gujarat, India
- Corresponding author.
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Production and characterization of insoluble α-1,3-linked glucan and soluble α-1,6-linked dextran from Leuconostoc pseudomesenteroides G29. Chin J Chem Eng 2021. [DOI: 10.1016/j.cjche.2021.06.020] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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4
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Pihurov M, Păcularu-Burada B, Cotârleţ M, Vasile MA, Bahrim GE. Novel Insights for Metabiotics Production by Using Artisanal Probiotic Cultures. Microorganisms 2021; 9:2184. [PMID: 34835310 PMCID: PMC8624174 DOI: 10.3390/microorganisms9112184] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2021] [Revised: 10/16/2021] [Accepted: 10/16/2021] [Indexed: 01/15/2023] Open
Abstract
Wild probiotic consortia of microorganisms (bacteria and yeasts) associated in the artisanal cultures' microbiota (milk kefir grains, water kefir grains and kombucha) are considered valuable promoters for metabiotics (prebiotics, probiotics, postbiotics and paraprobiotics) production. The beneficial effects of the fermented products obtained with the artisanal cultures on human well-being are described by centuries and the interest for them is continuously increasing. The wild origin and microbial diversity of these above-mentioned consortia give them extraordinary protection capacity against microbiological contaminants in unusual physico-chemical conditions and unique fermentative behaviour. This review summarizes the state of the art for the wild artisanal cultures (milk and water kefir grains, respectively, kombucha-SCOBY), their symbiotic functionality, and the ability to ferment unconventional substrates in order to obtain valuable bioactive compounds with in vitro and in vivo beneficial functional properties. Due to the necessity of the bioactives production and their use as metabiotics in the modern consumer's life, artisanal cultures are the perfect sources able to biosynthesize complex functional metabolites (bioactive peptides, antimicrobials, polysaccharides, enzymes, vitamins, cell wall components). Depending on the purposes of the biotechnological fermentation processes, artisanal cultures can be used as starters on different substrates. Current studies show that the microbial synergy between bacteria-yeast and/or bacteria-offers new perspectives to develop functional products (food, feeds, and ingredients) with a great impact on life quality.
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Affiliation(s)
| | | | | | | | - Gabriela Elena Bahrim
- Faculty of Food Science and Engineering, Dunarea de Jos University of Galati, Domneasca Street No. 111, 800201 Galati, Romania; (M.P.); (B.P.-B.); (M.C.); (M.A.V.)
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5
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Morphometric and physicochemical characteristics of carob pods in three geographical regions of Morocco. SN APPLIED SCIENCES 2020. [DOI: 10.1007/s42452-020-03963-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022] Open
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6
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Barcelos MCS, Ramos CL, Kuddus M, Rodriguez-Couto S, Srivastava N, Ramteke PW, Mishra PK, Molina G. Enzymatic potential for the valorization of agro-industrial by-products. Biotechnol Lett 2020; 42:1799-1827. [DOI: 10.1007/s10529-020-02957-3] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2020] [Accepted: 06/30/2020] [Indexed: 12/13/2022]
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7
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Zikmanis P, Kolesovs S, Semjonovs P. Production of biodegradable microbial polymers from whey. BIORESOUR BIOPROCESS 2020. [DOI: 10.1186/s40643-020-00326-6] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
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8
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Screening of eighteen polyphenolic compounds in different carob pekmez by green capillary electrophoresis method. SN APPLIED SCIENCES 2020. [DOI: 10.1007/s42452-020-2387-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022] Open
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9
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Low molecular weight dextran production by Leuconostoc mesenteroides strains: Optimization of a new culture medium and the rheological assessments. ACTA ACUST UNITED AC 2019. [DOI: 10.1016/j.bcdf.2019.100181] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
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11
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Yatmaz E, Turhan I. Carob as a carbon source for fermentation technology. BIOCATALYSIS AND AGRICULTURAL BIOTECHNOLOGY 2018. [DOI: 10.1016/j.bcab.2018.08.006] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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12
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Antiobesity and Antioxidant Potentials of Selected Palestinian Medicinal Plants. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2018; 2018:8426752. [PMID: 30026782 PMCID: PMC6031216 DOI: 10.1155/2018/8426752] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/25/2018] [Revised: 05/09/2018] [Accepted: 05/15/2018] [Indexed: 12/13/2022]
Abstract
We evaluated the antioxidant and porcine pancreatic lipase inhibition (PPLI) activities of 90 plants extracts. The antioxidant activity was measured using the free-radical scavenging capacity (DPPH) and reducing power (RP) assays. The pancreatic lipase inhibition assay was used to determine the PPLI activity of plant extracts. Among the 90 plant extracts examined, 41.0 % crude extracts showed antilipase activity of more than 50%. The most active plants by means of IC50 value were Camellia sinensis (0.5 mg/ml), Ceratonia siliqua (leaves) (0.8 mg/mL), Curcuma longa (0.8 mg/mL), Sarcopoterium spinosum (1.2 mg/mL), and Mentha spicata (1.2 mg/mL). The antioxidant activity of plant extracts using the DPPH and RP assays reveals comparable results. The most active antioxidant extracts using both assays were the leaves and fruit epicarp of Rhus coriaria, areal parts of Sarcopoterium spinosum, and leaves of Ceratonia siliqua. Our results suggest natural resources that possess strong antioxidant and pancreatic lipase inhibitory activities with potential applications in the treatment and prevention of obesity and overweight. The extracts of Camellia sinensis, Ceratonia siliqua, Curcuma longa, Sarcopoterium spinosum, and Mentha spicata were proved to have a great potential as antioxidants and antiobesity agents.
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Özcan E, Öner ET. Microbial of Extracellular Polysaccharide Production from Biomass Sources. POLYSACCHARIDES 2018. [DOI: 10.1007/978-3-319-03751-6_51-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022] Open
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Baruah R, Deka B, Kashyap N, Goyal A. Dextran Utilization During Its Synthesis by Weissella cibaria RBA12 Can Be Overcome by Fed-Batch Fermentation in a Bioreactor. Appl Biochem Biotechnol 2017; 184:1-11. [PMID: 28573604 DOI: 10.1007/s12010-017-2522-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2017] [Accepted: 05/19/2017] [Indexed: 11/24/2022]
Abstract
Weissella cibaria RBA12 produced a maximum of 9 mg/ml dextran (with 90% efficiency) using shake flask culture under the optimized concentration of medium components viz. 2% (w/v) of each sucrose, yeast extract, and K2HPO4 after incubation at optimized conditions of 20 °C and 180 rpm for 24 h. The optimized medium and conditions were used for scale-up of dextran production from Weissella cibaria RBA12 in 2.5-l working volume under batch fermentation in a bioreactor that yielded a maximum of 9.3 mg/ml dextran (with 93% efficiency) at 14 h. After 14 h, dextran produced was utilized by the bacterium till 18 h in its stationary phase under sucrose depleted conditions. Dextran utilization was further studied by fed-batch fermentation using sucrose feed. Dextran on production under fed-batch fermentation in bioreactor gave 35.8 mg/ml after 32 h. In fed-batch mode, there was no decrease in dextran concentration as observed in the batch mode. This showed that the utilization of dextran by Weissella cibaria RBA12 is initiated when there is sucrose depletion and therefore the presence of sucrose can possibly overcome the dextran hydrolysis. This is the first report of utilization of dextran, post-sucrose depletion by Weissella sp. studied in bioreactor.
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Affiliation(s)
- Rwivoo Baruah
- Carbohydrate Enzyme Biotechnology Laboratory, Department of Bioscience and Bioengineering, Indian Institute of Technology Guwahati, Guwahati, 781039, Assam, India
| | - Barsha Deka
- Carbohydrate Enzyme Biotechnology Laboratory, Department of Bioscience and Bioengineering, Indian Institute of Technology Guwahati, Guwahati, 781039, Assam, India
| | - Niharika Kashyap
- Center for the Environment, Indian Institute of Technology Guwahati, Guwahati, Assam, 781039, India
| | - Arun Goyal
- Carbohydrate Enzyme Biotechnology Laboratory, Department of Bioscience and Bioengineering, Indian Institute of Technology Guwahati, Guwahati, 781039, Assam, India. .,Center for the Environment, Indian Institute of Technology Guwahati, Guwahati, Assam, 781039, India.
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15
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Carvalho M, Roca C, Reis MAM. Improving succinic acid production by Actinobacillus succinogenes from raw industrial carob pods. BIORESOURCE TECHNOLOGY 2016; 218:491-497. [PMID: 27394995 DOI: 10.1016/j.biortech.2016.06.140] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/10/2016] [Revised: 06/25/2016] [Accepted: 06/27/2016] [Indexed: 06/06/2023]
Abstract
Carob pods are an inexpensive by-product of locust bean gum industry that can be used as renewable feedstock for bio-based succinic acid. Here, for the first time, unprocessed raw carob pods were used to extract a highly enriched sugar solution, afterwards used as substrate to produce succinic acid using Actinobacillus succinogenes. Batch fermentations containing 30g/L sugars resulted in a production rate of 1.67gSA/L.h and a yield of 0.39gSA/g sugars. Taking advantage of A. succinogenes' metabolism, uncoupling cell growth from succinic acid production, a fed-batch mode was implemented to increase succinic acid yield and reduce by-products formation. This strategy resulted in a succinic acid yield of 0.94gSA/g sugars, the highest yield reported in the literature for fed-batch and continuous experiments, while maintaining by-products at residual values. Results demonstrate that raw carob pods are a highly efficient feedstock for bio-based succinic acid production.
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Affiliation(s)
- Margarida Carvalho
- REQUIMTE, DQ/FCT, Universidade Nova de Lisboa, 2829-516, Caparica, Portugal
| | - Christophe Roca
- REQUIMTE, DQ/FCT, Universidade Nova de Lisboa, 2829-516, Caparica, Portugal.
| | - Maria A M Reis
- REQUIMTE, DQ/FCT, Universidade Nova de Lisboa, 2829-516, Caparica, Portugal
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Sugar Beet Pulp as Leuconostoc mesenteroides T3 Support for Enhanced Dextransucrase Production on Molasses. Appl Biochem Biotechnol 2016; 180:1016-1027. [PMID: 27287996 DOI: 10.1007/s12010-016-2149-x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2016] [Accepted: 05/25/2016] [Indexed: 10/21/2022]
Abstract
Sugar beet pulp (SBP) and molasses, as an agro industrial waste material, are produced in large amounts annually. Thus, a major challenge nowadays is to develop procedures that could increase the value of the generated waste. In this study, SBP as a support for cell immobilization and molasses as a source of nutrients were used for a dextransucrase (DS) production by Leuconostoc mesenteroides T3. The influence of SBP in native form (SBP-N) and after treatment with NaOH (SBP-NaOH) on DS production was investigated. The optimal medium composition for the maximum DS production was determined by varying the concentration of molasses, SBP, and sucrose. The maximum DS yield of 2.02 U/ml was obtained in the medium with 2.5 % of molasses, 2.5 % SBP-NaOH, and 4 % of sucrose concentration. Scanning electron microscopy (SEM) showed immobilization of Lc. mesenteroides T3 cells onto SBP-NaOH. According to the obtained results, the production of DS on molasses could be improved by using NaOH-treated SBP as a carrier for whole-cell immobilization. Our study reveals the basis for the development of process for DS production with additional reduction of expenses by using waste materials for obtaining the valuable biotechnological product.
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Lule VK, Singh R, Pophaly SD, Poonam, Tomar SK. Production and structural characterisation of dextran from an indigenous strain ofLeuconostoc mesenteroidesBA08 in Whey. INT J DAIRY TECHNOL 2016. [DOI: 10.1111/1471-0307.12271] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Affiliation(s)
- Vaibhao K Lule
- Dairy Microbiology Division; National Dairy Research Institute; Karnal Haryana 132001 India
| | - Rameshwar Singh
- Directorate of Knowledge Management in Agriculture; Indian Council of Agricultural Research; New Delhi India
| | - Sarang D Pophaly
- Department of Dairy Microbiology; College of Dairy Technology; Chhattisgarh Kamdhenu Vishwavidyalaya; Raipur Chhattisgarh 492006 India
| | - Poonam
- Dairy Microbiology Division; National Dairy Research Institute; Karnal Haryana 132001 India
| | - Sudhir K Tomar
- Dairy Microbiology Division; National Dairy Research Institute; Karnal Haryana 132001 India
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Cheese whey: A potential resource to transform into bioprotein, functional/nutritional proteins and bioactive peptides. Biotechnol Adv 2015; 33:756-74. [PMID: 26165970 DOI: 10.1016/j.biotechadv.2015.07.002] [Citation(s) in RCA: 189] [Impact Index Per Article: 21.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2014] [Revised: 06/12/2015] [Accepted: 07/06/2015] [Indexed: 12/26/2022]
Abstract
The byproduct of cheese-producing industries, cheese whey, is considered as an environmental pollutant due to its high BOD and COD concentrations. The high organic load of whey arises from the presence of residual milk nutrients. As demand for milk-derived products is increasing, it leads to increased production of whey, which poses a serious management problem. To overcome this problem, various technological approaches have been employed to convert whey into value-added products. These technological advancements have enhanced whey utilization and about 50% of the total produced whey is now transformed into value-added products such as whey powder, whey protein, whey permeate, bioethanol, biopolymers, hydrogen, methane, electricity bioprotein (single cell protein) and probiotics. Among various value-added products, the transformation of whey into proteinaceous products is attractive and demanding. The main important factor which is attractive for transformation of whey into proteinaceous products is the generally recognized as safe (GRAS) regulatory status of whey. Whey and whey permeate are biotransformed into proteinaceous feed and food-grade bioprotein/single cell protein through fermentation. On the other hand, whey can be directly processed to obtain whey protein concentrate, whey protein isolate, and individual whey proteins. Further, whey proteins are also transformed into bioactive peptides via enzymatic or fermentation processes. The proteinaceous products have applications as functional, nutritional and therapeutic commodities. Whey characteristics, and its transformation processes for proteinaceous products such as bioproteins, functional/nutritional protein and bioactive peptides are covered in this review.
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Carvalho M, Roca C, Reis MAM. Carob pod water extracts as feedstock for succinic acid production by Actinobacillus succinogenes 130Z. BIORESOURCE TECHNOLOGY 2014; 170:491-498. [PMID: 25164341 DOI: 10.1016/j.biortech.2014.07.117] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/04/2014] [Revised: 07/30/2014] [Accepted: 07/31/2014] [Indexed: 06/03/2023]
Abstract
Carob pods are a by-product of locust bean gum industry containing more than 50% (w/w) sucrose, glucose and fructose. In this work, carob pod water extracts were used, for the first time, for succinic acid production by Actinobacillus succinogenes 130Z. Kinetic studies of glucose, fructose and sucrose consumption as individual carbon sources till 30g/L showed no inhibition on cell growth, sugar consumption and SA production rates. Sugar extraction from carob pods was optimized varying solid/liquid ratio and extraction time, maximizing sugar recovery while minimizing the extraction of polyphenols. Batch fermentations containing 10-15g/L total sugars resulted in a maximum specific SA production rate of 0.61Cmol/Cmol X.h, with a yield of 0.55Cmol SA/Cmol sugar and a volumetric productivity of 1.61g SA/L.h. Results demonstrate that carob pods can be a promising low cost feedstock for bio-based SA production.
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Affiliation(s)
- Margarida Carvalho
- REQUIMTE, DQ/FCT, Universidade Nova de Lisboa, 2829-516 Caparica, Portugal
| | - Christophe Roca
- REQUIMTE, DQ/FCT, Universidade Nova de Lisboa, 2829-516 Caparica, Portugal.
| | - Maria A M Reis
- REQUIMTE, DQ/FCT, Universidade Nova de Lisboa, 2829-516 Caparica, Portugal
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Microbial of Extracellular Polysaccharide Production from Biomass Sources. POLYSACCHARIDES 2014. [DOI: 10.1007/978-3-319-03751-6_51-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022] Open
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22
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Öner ET. Microbial Production of Extracellular Polysaccharides from Biomass. PRETREATMENT TECHNIQUES FOR BIOFUELS AND BIOREFINERIES 2013. [DOI: 10.1007/978-3-642-32735-3_2] [Citation(s) in RCA: 47] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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23
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Aissani N, Coroneo V, Fattouch S, Caboni P. Inhibitory effect of carob (Ceratonia siliqua) leaves methanolic extract on Listeria monocytogenes. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2012; 60:9954-9958. [PMID: 22978382 DOI: 10.1021/jf3029623] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
In recent years, there has been great development in the search for new natural compounds for food preservation aimed at a partial or total replacement of currently popular antimicrobial chemicals. Carob (Ceratonia siliqua) offers a natural promising alternative for food safety and bioconservation. In this work, the methanolic extract of carob leaves (MECL) was tested for the ability to inhibit the growth of a range of microorganisms. MECL inhibited the growth of Listeria monocytogenes at 28.12 μg/mL by the broth microdilution method. The effect of this bacteriostatic concentration on the growth of this bacterium revealed a pattern of inhibition characterized by (a) a resumed growth phase, which showed a lower rate of growth if compared with controls; and (b) first a lag and then a stationary phase at a lower bacterium concentration. The study of the chemical composition of MECL by high-performance liquid chromatography and liquid chromatography/mass spectrometry showed the presence of gallic acid, (-)-epigallocatechin-3-gallate, myricitrin, isoquercitin, catechin, chlorogenic acid, and malic acid. L. monocytogenes growth inhibition was recorded for myricitrin and gallic acid at 450 μg/mL and for (-)-epigallocatechin-3-gallate and isoquercitin, respectively, at 225 and 112.5 μg/mL. Taking into account that proline is a ligand of proline dehydrogenase (PDH), the use of this compound leads us to hypothesize the mode of action of MECL constituents.
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Affiliation(s)
- Nadhem Aissani
- Department of Life and Environment Sciences, University of Cagliari , Via Ospedale 72, 09124 Cagliari, Italy
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Zou Q, Pu Y, Han Z, Fu N, Li S, Liu M, Huang L, Lu A, Mo J, Chen S. Ultrasonic degradation of aqueous dextran: Effect of initial molecular weight and concentration. Carbohydr Polym 2012; 90:447-51. [DOI: 10.1016/j.carbpol.2012.05.064] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2012] [Revised: 05/12/2012] [Accepted: 05/19/2012] [Indexed: 11/28/2022]
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Lima-Costa ME, Tavares C, Raposo S, Rodrigues B, Peinado JM. Kinetics of sugars consumption and ethanol inhibition in carob pulp fermentation by Saccharomyces cerevisiae in batch and fed-batch cultures. ACTA ACUST UNITED AC 2012; 39:789-97. [DOI: 10.1007/s10295-011-1079-4] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2011] [Accepted: 12/20/2011] [Indexed: 11/24/2022]
Abstract
Abstract
The waste materials from the carob processing industry are a potential resource for second-generation bioethanol production. These by-products are small carob kibbles with a high content of soluble sugars (45–50%). Batch and fed-batch Saccharomyces cerevisiae fermentations of high density sugar from carob pods were analyzed in terms of the kinetics of sugars consumption and ethanol inhibition. In all the batch runs, 90–95% of the total sugar was consumed and transformed into ethanol with a yield close to the theoretical maximum (0.47–0.50 g/g), and a final ethanol concentration of 100–110 g/l. In fed-batch runs, fresh carob extract was added when glucose had been consumed. This addition and the subsequent decrease of ethanol concentrations by dilution increased the final ethanol production up to 130 g/l. It seems that invertase activity and yeast tolerance to ethanol are the main factors to be controlled in carob fermentations. The efficiency of highly concentrated carob fermentation makes it a very promising process for use in a second-generation ethanol biorefinery.
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Affiliation(s)
- Maria Emília Lima-Costa
- grid.7157.4 0000 0000 9693 350X Faculty of Sciences and Technology, Centre for Marine and Environmental Research—CIMA University of Algarve—Campus de Gambelas 8005-139 Faro Portugal
| | - Catarina Tavares
- grid.7157.4 0000 0000 9693 350X Faculty of Sciences and Technology, Centre for Marine and Environmental Research—CIMA University of Algarve—Campus de Gambelas 8005-139 Faro Portugal
| | - Sara Raposo
- grid.7157.4 0000 0000 9693 350X Faculty of Sciences and Technology, Centre for Marine and Environmental Research—CIMA University of Algarve—Campus de Gambelas 8005-139 Faro Portugal
| | - Brígida Rodrigues
- grid.7157.4 0000 0000 9693 350X Faculty of Sciences and Technology, Centre for Marine and Environmental Research—CIMA University of Algarve—Campus de Gambelas 8005-139 Faro Portugal
| | - José M Peinado
- grid.4795.f 0000000121577667 Department of Microbiology III, Faculty of Biology Universidad Complutense 28040 Madrid Spain
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Hsouna AB, Trigui M, Mansour RB, Jarraya RM, Damak M, Jaoua S. Chemical composition, cytotoxicity effect and antimicrobial activity of Ceratonia siliqua essential oil with preservative effects against Listeria inoculated in minced beef meat. Int J Food Microbiol 2011; 148:66-72. [PMID: 21601302 DOI: 10.1016/j.ijfoodmicro.2011.04.028] [Citation(s) in RCA: 114] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2010] [Revised: 04/22/2011] [Accepted: 04/30/2011] [Indexed: 10/18/2022]
Abstract
The present study describes the phytochemical profile and the protective effects of Ceratonia siliqua pods essential oil (CsEO), a food and medicinal plant widely distributed in Tunisia. Twenty five different components were identified in the CsEO. Among them, the major detected components were: Nonadecane, Heneicosane , Naphthalene, 1,2-Benzenedicarboxylic acid dibutylester, Heptadecane, Hexadecanoic acid, Octadecanoic acid, 1,2-Benzenedicarboxylic acid, Phenyl ethyl tiglate, Eicosene, Farnesol 3, Camphor, Nerolidol and n-Eicosane. The antimicrobial activity of CsEO was evaluated against a panel of 13 bacteria and 8 fungal strains using agar diffusion and broth microdilution methods. Results have shown that CsEO exhibited moderate to strong antimicrobial activity against the tested species. In addition, the inhibitory effect of this CsEO was evaluated in vivo against a foodborne pathogens Listeria monocytogenes, experimentally inoculated in minced beef meat (2×10(2) CFU/g of meat) amended with different concentrations of the CsEO and stored at 7 °C for 10 days. The antibacterial activity of CsEO in minced beef meat was clearly evident and its presence led to a strong inhibitory effect against the pathogens at 7 °C. On the other hand, the cytotoxic effects of the essential oil against two tumoral human cell lines HeLa and MCF-7 were examined by MTT assay. The CsEO showed an inhibition of both cell lines with significantly stronger activity against HeLa cells. The IC(50) values were 210 and 800 μg/ml for HeLa and MCF-7 cells, respectively. Overall, results presented here suggest that the EO of C. siliqua possesses antimicrobial and cytotoxic properties, and is therefore a potential source of active ingredients for food and pharmaceutical industry.
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Affiliation(s)
- Anis Ben Hsouna
- Biopesticides Team (LPIP), Center of Biotechnology of Sfax, Tunisia
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Carvalheiro F, Moniz P, Duarte LC, Esteves MP, Gírio FM. Mannitol production by lactic acid bacteria grown in supplemented carob syrup. J Ind Microbiol Biotechnol 2010; 38:221-7. [DOI: 10.1007/s10295-010-0823-5] [Citation(s) in RCA: 51] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2010] [Accepted: 07/26/2010] [Indexed: 11/30/2022]
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Manso T, Nunes C, Raposo S, Lima-Costa ME. Carob pulp as raw material for production of the biocontrol agent P. agglomerans PBC-1. J Ind Microbiol Biotechnol 2010; 37:1145-55. [DOI: 10.1007/s10295-010-0762-1] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2010] [Accepted: 06/03/2010] [Indexed: 10/19/2022]
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Şahin H, Topuz A, Pischetsrieder M, Özdemir F. Effect of roasting process on phenolic, antioxidant and browning properties of carob powder. Eur Food Res Technol 2009. [DOI: 10.1007/s00217-009-1152-7] [Citation(s) in RCA: 73] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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Sengül M, Fatih Ertugay M, Sengül M, Yüksel Y. Rheological Characteristics of Carob Pekmez. INTERNATIONAL JOURNAL OF FOOD PROPERTIES 2007. [DOI: 10.1080/10942910600627996] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Sugar profiles of the pods of cultivated and wild types of carob bean (Ceratonia siliqua L.) in Turkey. Food Chem 2007. [DOI: 10.1016/j.foodchem.2005.11.037] [Citation(s) in RCA: 78] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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