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de Cássia Spacki K, Novi DMP, de Oliveira-Junior VA, Durigon DC, Fraga FC, dos Santos LFO, Helm CV, de Lima EA, Peralta RA, de Fátima Peralta Muniz Moreira R, Corrêa RCG, Bracht A, Peralta RM. Improving Enzymatic Saccharification of Peach Palm ( Bactris gasipaes) Wastes via Biological Pretreatment with Pleurotus ostreatus. PLANTS (BASEL, SWITZERLAND) 2023; 12:2824. [PMID: 37570978 PMCID: PMC10420912 DOI: 10.3390/plants12152824] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/19/2023] [Revised: 07/26/2023] [Accepted: 07/26/2023] [Indexed: 08/13/2023]
Abstract
The white-rot fungus Pleurotus ostreatus was used for biological pretreatment of peach palm (Bactris gasipaes) lignocellulosic wastes. Non-treated and treated B. gasipaes inner sheaths and peel were submitted to hydrolysis using a commercial cellulase preparation from T. reesei. The amounts of total reducing sugars and glucose obtained from the 30 d-pretreated inner sheaths were seven and five times higher, respectively, than those obtained from the inner sheaths without pretreatment. No such improvement was found, however, in the pretreated B. gasipaes peels. Scanning electronic microscopy of the lignocellulosic fibers was performed to verify the structural changes caused by the biological pretreatments. Upon the biological pretreatment, the lignocellulosic structures of the inner sheaths were substantially modified, making them less ordered. The main features of the modifications were the detachment of the fibers, cell wall collapse and, in several cases, the formation of pores in the cell wall surfaces. The peel lignocellulosic fibers showed more ordered fibrils and no modification was observed after pre-treatment. In conclusion, a seven-fold increase in the enzymatic saccharification of the Bactris gasipaes inner sheath was observed after pre-treatment, while no improvement in enzymatic saccharification was observed in the B. gasipaes peel.
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Affiliation(s)
- Kamila de Cássia Spacki
- Departamento de Bioquímica, Universidade Estadual de Maringá, Maringá 87020-900, Brazil; (K.d.C.S.); (D.M.P.N.); (V.A.d.O.-J.); (L.F.O.d.S.); (A.B.)
| | - Danielly Maria Paixão Novi
- Departamento de Bioquímica, Universidade Estadual de Maringá, Maringá 87020-900, Brazil; (K.d.C.S.); (D.M.P.N.); (V.A.d.O.-J.); (L.F.O.d.S.); (A.B.)
| | - Verci Alves de Oliveira-Junior
- Departamento de Bioquímica, Universidade Estadual de Maringá, Maringá 87020-900, Brazil; (K.d.C.S.); (D.M.P.N.); (V.A.d.O.-J.); (L.F.O.d.S.); (A.B.)
| | - Daniele Cocco Durigon
- Departamento de Química, Universidade Federal de Santa Catarina, Florianópolis 88040-900, Brazil; (D.C.D.); (R.A.P.)
| | - Fernanda Cristina Fraga
- Departamento de Engenharia Química, Universidade Federal de Santa Catarina, Florianópolis 88040-900, Brazil; (F.C.F.); (R.d.F.P.M.M.)
| | - Luís Felipe Oliva dos Santos
- Departamento de Bioquímica, Universidade Estadual de Maringá, Maringá 87020-900, Brazil; (K.d.C.S.); (D.M.P.N.); (V.A.d.O.-J.); (L.F.O.d.S.); (A.B.)
| | | | | | - Rosely Aparecida Peralta
- Departamento de Química, Universidade Federal de Santa Catarina, Florianópolis 88040-900, Brazil; (D.C.D.); (R.A.P.)
| | | | - Rúbia Carvalho Gomes Corrêa
- Programa de Pós-Graduação em Tecnologias Limpas, Instituto Cesumar de Ciência, Tecnologia e Inovação—ICETI, Universidade Cesumar—UNICESUMAR, Maringá 87050-900, Brazil;
| | - Adelar Bracht
- Departamento de Bioquímica, Universidade Estadual de Maringá, Maringá 87020-900, Brazil; (K.d.C.S.); (D.M.P.N.); (V.A.d.O.-J.); (L.F.O.d.S.); (A.B.)
| | - Rosane Marina Peralta
- Departamento de Bioquímica, Universidade Estadual de Maringá, Maringá 87020-900, Brazil; (K.d.C.S.); (D.M.P.N.); (V.A.d.O.-J.); (L.F.O.d.S.); (A.B.)
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Ebrahimi P, Mihaylova D, Marangon CM, Grigoletto L, Lante A. Impact of Sample Pretreatment and Extraction Methods on the Bioactive Compounds of Sugar Beet ( Beta vulgaris L.) Leaves. Molecules 2022; 27:8110. [PMID: 36432211 PMCID: PMC9697780 DOI: 10.3390/molecules27228110] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2022] [Revised: 11/16/2022] [Accepted: 11/19/2022] [Indexed: 11/23/2022] Open
Abstract
To find the most optimal green valorization process of food by-products, sugar beet (Beta vulgaris L.) leaves (SBLs) were freeze-dried and ground with/without liquid nitrogen (LN), as a simple sample pretreatment method, before ultrasound-assisted extraction (UAE) of polyphenols. First, the water activity, proximate composition, amino acid (AA) and fatty acid (FA) profiles, and polyphenol oxidase (PPO) activity of dried and fresh SBLs were evaluated. Then, conventional extraction (CE) and UAE of polyphenols from SBLs using water/EtOH:water 14:6 (v/v) as extracting solvents were performed to determine the individual and combined effects of the sample preparation method and UAE. In all the freeze-dried samples, the specific activity of PPO decreased significantly (p ≤ 0.05). Freeze-drying significantly increased (p ≤ 0.05) the fiber and essential FA contents of SBLs. The FA profile of SBLs revealed that they are rich sources of oleic, linoleic, and α-linolenic acids. Although freeze-drying changed the contents of most AAs insignificantly, lysine increased significantly from 7.06 ± 0.46% to 8.32 ± 0.38%. The aqueous UAE of the freeze-dried samples without LN pretreatment yielded the most optimal total phenolic content (TPC) (69.44 ± 0.15 mg gallic acid equivalent/g dry matter (mg GAE/g DM)) and excellent antioxidant activities. Thus, combining freeze-drying with the aqueous UAE method could be proposed as a sustainable strategy for extracting bioactive compounds from food by-products.
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Affiliation(s)
- Peyman Ebrahimi
- Department of Agronomy, Food, Natural Resources, Animals, and Environment—DAFNAE, Agripolis, University of Padova, 35020 Legnaro, Italy
| | - Dasha Mihaylova
- Department of Biotechnology, University of Food Technologies, 26 Maritza Blvd., 4002 Plovdiv, Bulgaria
| | - Christine Mayr Marangon
- Department of Agronomy, Food, Natural Resources, Animals, and Environment—DAFNAE, Agripolis, University of Padova, 35020 Legnaro, Italy
| | - Luca Grigoletto
- Department of Agronomy, Food, Natural Resources, Animals, and Environment—DAFNAE, Agripolis, University of Padova, 35020 Legnaro, Italy
| | - Anna Lante
- Department of Agronomy, Food, Natural Resources, Animals, and Environment—DAFNAE, Agripolis, University of Padova, 35020 Legnaro, Italy
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de Cássia Spacki K, Corrêa RCG, Uber TM, Barros L, Ferreira ICFR, Peralta RA, de Fátima Peralta Muniz Moreira R, Helm CV, de Lima EA, Bracht A, Peralta RM. Full Exploitation of Peach Palm ( Bactris gasipaes Kunth): State of the Art and Perspectives. PLANTS (BASEL, SWITZERLAND) 2022; 11:3175. [PMID: 36432904 PMCID: PMC9696370 DOI: 10.3390/plants11223175] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/03/2022] [Revised: 11/14/2022] [Accepted: 11/16/2022] [Indexed: 06/16/2023]
Abstract
The peach palm (Bactris gasipaes Kunth) is a palm tree native to the Amazon region, with plantations expanding to the Brazilian Southwest and South regions. This work is a critical review of historical, botanical, social, environmental, and nutritional aspects of edible and nonedible parts of the plant. In Brazil, the importance of the cultivation of B. gasipaes to produce palm heart has grown considerably, due to its advantages in relation to other palm species, such as precocity, rusticity and tillering. The last one is especially important, as it makes the exploitation of peach palm hearts, contrary to what happens with other palm tree species, a non-predatory practice. Of special interest are the recent efforts aiming at the valorization of the fruit as a source of carotenoids and starch. Further developments indicate that the B. gasipaes lignocellulosic wastes hold great potential for being upcycled into valuable biotechnological products such as prebiotics, enzymes, cellulose nanofibrils and high fiber flours. Clean technologies are protagonists of the recovery processes, ensuring the closure of the product's life cycle in a "green" way. Future research should focus on expanding and making the recovery processes economically viable, which would be of great importance for stimulating the peach palm production chain.
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Affiliation(s)
| | - Rúbia Carvalho Gomes Corrêa
- Programa de Pós-Graduação em Tecnologias Limpas, Instituto Cesumar de Ciência, Tecnologia e Inovação—ICETI, Universidade Cesumar—UNICESUMAR, Maringá 87050-900, Brazil
- Centro de Investigação de Montanha (CIMO), Instituto Politécnico de Bragança, Campus de Santa Apolónia, 5300-253 Bragança, Portugal
| | - Thaís Marques Uber
- Departamento de Bioquímica, Universidade Estadual de Maringá, Maringá 87020-900, Brazil
| | - Lillian Barros
- Centro de Investigação de Montanha (CIMO), Instituto Politécnico de Bragança, Campus de Santa Apolónia, 5300-253 Bragança, Portugal
- Laboratório Associado para a Sustentabilidade e Tecnologia em Regiões de Montanha (SusTEC), Instituto Politécnico de Bragança, Campus de Santa Apolónia, 5300-253 Bragança, Portugal
| | - Isabel C. F. R. Ferreira
- Centro de Investigação de Montanha (CIMO), Instituto Politécnico de Bragança, Campus de Santa Apolónia, 5300-253 Bragança, Portugal
| | - Rosely Aparecida Peralta
- Departamento de Química, Universidade Federal de Santa Catarina, Florianópolis 88040-900, Brazil
| | | | | | | | - Adelar Bracht
- Departamento de Bioquímica, Universidade Estadual de Maringá, Maringá 87020-900, Brazil
| | - Rosane Marina Peralta
- Departamento de Bioquímica, Universidade Estadual de Maringá, Maringá 87020-900, Brazil
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Fayaz G, Soleimanian Y, Mhamadi M, Turgeon SL, Khalloufi S. The applications of conventional and innovative mechanical technologies to tailor structural and functional features of dietary fibers from plant wastes: A review. Compr Rev Food Sci Food Saf 2022; 21:2149-2199. [DOI: 10.1111/1541-4337.12934] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2021] [Revised: 12/04/2021] [Accepted: 02/05/2022] [Indexed: 11/29/2022]
Affiliation(s)
- Goly Fayaz
- Soils Science and Agri‐Food Engineering Department Laval University Québec Canada
- Institute of Nutrition and Functional Foods Laval University Québec Canada
| | - Yasamin Soleimanian
- Soils Science and Agri‐Food Engineering Department Laval University Québec Canada
- Institute of Nutrition and Functional Foods Laval University Québec Canada
| | - Mmadi Mhamadi
- Soils Science and Agri‐Food Engineering Department Laval University Québec Canada
- Institute of Nutrition and Functional Foods Laval University Québec Canada
| | - Sylvie L. Turgeon
- Institute of Nutrition and Functional Foods Laval University Québec Canada
- Food Science Department Laval University Québec Canada
| | - Seddik Khalloufi
- Soils Science and Agri‐Food Engineering Department Laval University Québec Canada
- Institute of Nutrition and Functional Foods Laval University Québec Canada
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Chen X, Chen L, Gan X, Pan S, Pan H. Extension of lubricant drain interval by modified pure biomass oil filter. ASIA-PAC J CHEM ENG 2021. [DOI: 10.1002/apj.2652] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Xiaohui Chen
- National Engineering Research Center of Chemical Fertilizer Catalyst, School of Chemical Engineering Fuzhou University Fuzhou China
- School of Chemical Engineering Fuzhou University Fuzhou China
| | - Lu Chen
- National Engineering Research Center of Chemical Fertilizer Catalyst, School of Chemical Engineering Fuzhou University Fuzhou China
- School of Chemical Engineering Fuzhou University Fuzhou China
| | - Xianqian Gan
- National Engineering Research Center of Chemical Fertilizer Catalyst, School of Chemical Engineering Fuzhou University Fuzhou China
- School of Chemical Engineering Fuzhou University Fuzhou China
| | - Shouquan Pan
- Technology R&D Department Fuzhou Savon Environmental Technology Co. Ltd Fuzhou China
| | - Hongkun Pan
- Technology R&D Department Fuzhou Savon Environmental Technology Co. Ltd Fuzhou China
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Avila Delucis R, Cademartori PHG, Fajardo AR, Amico SC. Cellulose and its Derivatives: Properties and Applications. POLYSACCHARIDES 2021. [DOI: 10.1002/9781119711414.ch11] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
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Sun SF, Yang J, Wang DW, Yang HY, Sun SN, Shi ZJ. Enzymatic response of ryegrass cellulose and hemicellulose valorization introduced by sequential alkaline extractions. BIOTECHNOLOGY FOR BIOFUELS 2021; 14:72. [PMID: 33741045 PMCID: PMC7976698 DOI: 10.1186/s13068-021-01921-1] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/07/2021] [Accepted: 03/05/2021] [Indexed: 05/19/2023]
Abstract
BACKGROUND In view of the natural resistance of hemicelluloses in lignocellulosic biomass on bioconversion of cellulose into fermentable sugars, alkali extraction is considered as an effective method for gradually fractionating hemicelluloses and increasing the bioconversion efficiency of cellulose. In the present study, sequential alkaline extractions were performed on the delignified ryegrass material to achieve high bioconversion efficiency of cellulose and comprehensively investigated the structural features of hemicellulosic fractions for further applications. RESULTS Sequential alkaline extractions removed hemicelluloses from cellulose-rich substrates and degraded part of amorphous cellulose, reducing yields of cellulose-rich substrates from 73.0 to 27.7% and increasing crystallinity indexes from 31.7 to 41.0%. Alkaline extraction enhanced bioconversion of cellulose by removal of hemicelluloses and swelling of cellulose, increasing of enzymatic hydrolysis from 72.3 to 95.3%. In addition, alkaline extraction gradually fractionated hemicelluloses into six fractions, containing arabinoxylans as the main polysaccharides and part of β-glucans. Simultaneously, increasing of alkaline concentration degraded hemicellulosic polysaccharides, which resulted in a decreasing their molecular weights from 67,510 to 50,720 g/mol. CONCLUSIONS The present study demonstrated that the sequential alkaline extraction conditions had significant effects on the enzymatic hydrolysis efficiency of cellulose and the investigation of the physicochemical properties of hemicellulose. Overall, the investigation the enzymatic hydrolysis efficiency of cellulose-rich substrates and the structural features of hemicelluloses from ryegrass will provide useful information for the efficient utilization of cellulose and hemicelluloses in biorefineries.
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Affiliation(s)
- Shao-Fei Sun
- Key Laboratory for Forest Resources Conservation and Utilization in the Southwest Mountains of China, Ministry of Education, Southwest Forestry University, Kunming, 650224 China
- Key Laboratory of State Forestry and Grassland Administration on Highly-Efficient Utilization of Forestry Biomass Resources in Southwest China, Southwest Forestry University, Kunming, 650224 China
| | - Jing Yang
- Key Laboratory for Forest Resources Conservation and Utilization in the Southwest Mountains of China, Ministry of Education, Southwest Forestry University, Kunming, 650224 China
| | - Da-Wei Wang
- Key Laboratory for Forest Resources Conservation and Utilization in the Southwest Mountains of China, Ministry of Education, Southwest Forestry University, Kunming, 650224 China
| | - Hai-Yan Yang
- Key Laboratory for Forest Resources Conservation and Utilization in the Southwest Mountains of China, Ministry of Education, Southwest Forestry University, Kunming, 650224 China
- Key Laboratory of State Forestry and Grassland Administration on Highly-Efficient Utilization of Forestry Biomass Resources in Southwest China, Southwest Forestry University, Kunming, 650224 China
| | - Shao-Ni Sun
- Beijing Key Laboratory of Lignocellulosic Chemistry, Beijing Forestry University, Beijing, 100083 China
| | - Zheng-Jun Shi
- Key Laboratory for Forest Resources Conservation and Utilization in the Southwest Mountains of China, Ministry of Education, Southwest Forestry University, Kunming, 650224 China
- Key Laboratory of State Forestry and Grassland Administration on Highly-Efficient Utilization of Forestry Biomass Resources in Southwest China, Southwest Forestry University, Kunming, 650224 China
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Maitra S, Singh V. Balancing sugar recovery and inhibitor generation during energycane processing: Coupling cryogenic grinding with hydrothermal pretreatment at low temperatures. BIORESOURCE TECHNOLOGY 2021; 321:124424. [PMID: 33298346 DOI: 10.1016/j.biortech.2020.124424] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/26/2020] [Revised: 11/12/2020] [Accepted: 11/13/2020] [Indexed: 05/10/2023]
Abstract
Pretreatment of lignocellulosic biomass at high temperatures or with oxidizing chemicals generate various inhibitors that restrict the efficient bioconversion of sugars in subsequent steps. The present study systematically investigates individual and combinatorial effects of pretreatment parameters on the generation of inhibitors. A plot between pretreatment temperature and inhibitor revealed optimum pretreatment temperature for energycane bagasse i.e., 170 °C beyond which total inhibitor production increased exponentially. No inhibitor production was observed on mechanical processing i.e., disk milling/cryogenic grinding of biomass. Evaluation of response surface regression exhibited that biomass solids loading has a significant effect on inhibitor generation at higher temperatures. The concentrations of certain inhibitors such as acetic acid, furfurals, and HMF increased more than 3-folds on doubling the solids loading. Furthermore, a novel low-severity approach of low-temperature hydrothermal pretreatment coupled with cryogenic grinding for lignocellulosic biomasses has been introduced which improved sugar yields while maintaining a low inhibitor concentration.
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Affiliation(s)
- Shraddha Maitra
- Department of Agricultural and Biological Engineering, University of Illinois at Urbana-Champaign, Urbana, IL, USA
| | - Vijay Singh
- Department of Agricultural and Biological Engineering, University of Illinois at Urbana-Champaign, Urbana, IL, USA.
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Efficient and Selective Catalytic Conversion of Hemicellulose in Rice Straw by Metal Catalyst under Mild Conditions. SUSTAINABILITY 2020. [DOI: 10.3390/su122410601] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Rice straw is an abundant material with the potential to be converted into a sustainable energy resource. Transition-metal catalysis activated the C–O bond in the hemicellulose of raw rice straw, cleaving it to form monosaccharides. The mechanism of rice straw catalytic conversion had a synergistic effect due to in situ acid catalysis and metal catalysis. The conditions for the hydrogenation of hemicellulose from rice straw were optimized: catalyst to rice straw solid/solid ratio of 3:10, stirring speed of 600 r/min, temperature of 160 °C, time of 3 h, solid/liquid ratio of 1:15, and H2 gas pressure of 1.5 MPa. An excellent hemicellulose conversion of 97.3% with the yields of xylose and arabinose at 53.0% and 17.3%, respectively, were obtained. The results from FTIR and SEM experiments also confirmed the destruction of the rigidity and reticulate structure of rice straw after the catalytic reaction.
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Shen F, Sun S, Yang J, Qiu M, Qi X. Coupled Pretreatment with Liquid Nitrogen and Ball Milling for Enhanced Cellulose Hydrolysis in Water. ACS OMEGA 2019; 4:11756-11759. [PMID: 31460282 PMCID: PMC6682063 DOI: 10.1021/acsomega.9b01406] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/14/2019] [Accepted: 06/25/2019] [Indexed: 05/25/2023]
Abstract
A key problem in the conversion of cellulose into chemicals and fuels is the low product yield from cellulose due to its robust structure. In this work, for the first time, cellulose was pretreated with coupling of liquid nitrogen and ball milling (LN-BM) for cellulose hydrolysis. After the LN-BM treatment, the glucose yield from cellulose by HCl in water increased by almost 2 times and yield of formic acid catalyzed by H2SO4-NaVO3 was more than 3-fold that obtained from untreated cellulose. The yields were also much higher than that from the individually ball-milled cellulose. The structure variation of cellulose indicated that reduction of both crystallinity index and molecular weight contributed to improving the conversion efficiency, but the former was the dominant factor. The combination of liquid nitrogen and ball milling developed in this work is an effective and environment-friendly approach for cellulose pretreatment.
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Liu Q, Yao L, Xu Y, Cheng H, Wang W, Liu Z, Liu J, Cui X, Zhou Y, Ning W. In vitro evaluation of hydroxycinnamoyl CoA:quinate hydroxycinnamoyl transferase expression and regulation in Taraxacum antungense in relation to 5-caffeoylquinic acid production. PHYTOCHEMISTRY 2019; 162:148-156. [PMID: 30897352 DOI: 10.1016/j.phytochem.2019.02.014] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/03/2018] [Revised: 02/16/2019] [Accepted: 02/27/2019] [Indexed: 05/27/2023]
Abstract
Chlorogenic acids (CGA; including 5-caffeoylquinic acid and its regio-isomers) in Taraxacum antungense Kitag. have antioxidant and anti-inflammatory properties and exert other pharmacological effects. T. antungense hydroxycinnamoyl-CoA quinate hydroxycinnamoyl transferase (TaHQT)1 and TaHQT2, which belong to the BAHD acyltransferase family, are candidates for synthesizing 5-caffeoylquinic acid and that have not been extensively characterized. In this study, we cloned the TaHQT1 and TaHQT2 genes and analysed the properties of the expressed enzymes both in vitro and in vivo. Quantitative reverse transcription PCR analysis revealed that TaHQT1 was highly expressed in the root, whereas the strongest TaHQT2 expression was observed in T. antungense leaves. In Nicotiana benthamiana leaf cells, TaHQT1 and TaHQT2 were localized at the cell periphery as well as in the cytoplasm and nucleus. The 5-caffeoylquinic acid concentrations in T. antungense calli were reduced by TaHQT1 and TaHQT2 knockdown relative to the control. Conversely, inoculation of T. antungense plants tissues with recombinant TaHQT1 and TaHQT2 increased 5-caffeoylquinic acid levels in situ. These in vitro and in vivo findings demonstrate that both HQTs are involved in regulating 5-caffeoylquinic acid biosynthesis in T. antungense, which can be exploited to increase 5-caffeoylquinic acid production in plants for medicinal or other beneficial purposes.
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Affiliation(s)
- Qun Liu
- College of Horticulture, Shenyang Agricultural University, Shen Yang, 110866, China; Exsitu Conservation Garden Evaluation Centre of Wild Vegetable Germplasm in Northeast China under Ministry of Agriculture, Shen Yang, 110866, China
| | - Lixiang Yao
- College of Horticulture, Shenyang Agricultural University, Shen Yang, 110866, China; Exsitu Conservation Garden Evaluation Centre of Wild Vegetable Germplasm in Northeast China under Ministry of Agriculture, Shen Yang, 110866, China
| | - Yachen Xu
- College of Horticulture, Shenyang Agricultural University, Shen Yang, 110866, China; Exsitu Conservation Garden Evaluation Centre of Wild Vegetable Germplasm in Northeast China under Ministry of Agriculture, Shen Yang, 110866, China
| | - Haitao Cheng
- College of Horticulture, Shenyang Agricultural University, Shen Yang, 110866, China; School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Shenyang, 110016, China
| | - Weiting Wang
- College of Horticulture, Shenyang Agricultural University, Shen Yang, 110866, China; Exsitu Conservation Garden Evaluation Centre of Wild Vegetable Germplasm in Northeast China under Ministry of Agriculture, Shen Yang, 110866, China
| | - Zijia Liu
- College of Horticulture, Shenyang Agricultural University, Shen Yang, 110866, China; Exsitu Conservation Garden Evaluation Centre of Wild Vegetable Germplasm in Northeast China under Ministry of Agriculture, Shen Yang, 110866, China
| | - Jia Liu
- College of Horticulture, Shenyang Agricultural University, Shen Yang, 110866, China; Exsitu Conservation Garden Evaluation Centre of Wild Vegetable Germplasm in Northeast China under Ministry of Agriculture, Shen Yang, 110866, China
| | - Xin Cui
- College of Horticulture, Shenyang Agricultural University, Shen Yang, 110866, China; Exsitu Conservation Garden Evaluation Centre of Wild Vegetable Germplasm in Northeast China under Ministry of Agriculture, Shen Yang, 110866, China
| | - Yujie Zhou
- College of Horticulture, Shenyang Agricultural University, Shen Yang, 110866, China; Exsitu Conservation Garden Evaluation Centre of Wild Vegetable Germplasm in Northeast China under Ministry of Agriculture, Shen Yang, 110866, China
| | - Wei Ning
- College of Horticulture, Shenyang Agricultural University, Shen Yang, 110866, China; Exsitu Conservation Garden Evaluation Centre of Wild Vegetable Germplasm in Northeast China under Ministry of Agriculture, Shen Yang, 110866, China.
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12
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Zhang Y, Huang M, Su J, Hu H, Yang M, Huang Z, Chen D, Wu J, Feng Z. Overcoming biomass recalcitrance by synergistic pretreatment of mechanical activation and metal salt for enhancing enzymatic conversion of lignocellulose. BIOTECHNOLOGY FOR BIOFUELS 2019; 12:12. [PMID: 30647772 PMCID: PMC6327530 DOI: 10.1186/s13068-019-1354-6] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/17/2018] [Accepted: 01/04/2019] [Indexed: 05/20/2023]
Abstract
BACKGROUND Due to biomass recalcitrance, including complexity of lignocellulosic matrix, crystallinity of cellulose, and inhibition of lignin, the bioconversion of lignocellulosic biomass is difficult and inefficient. The aim of this study is to investigate an effective and green pretreatment method for overcoming biomass recalcitrance of lignocellulose. RESULTS An effective mechanical activation (MA) + metal salt (MAMS) technology was applied to pretreat sugarcane bagasse (SCB), a typical kind of lignocellulosic biomass, in a stirring ball mill. Chlorides and nitrates of Al and Fe showed better synergistic effect with MA, especially AlCl3, ascribing to the interaction between metal salt and oxygen-containing groups induced by MA. Comparative studies showed that MAMS pretreatment effectively changed the recalcitrant structural characteristics of lignocellulosic matrix and reduced the inhibitory action of lignin on enzymatic conversion of SCB. The increase in hydroxyl and carboxyl groups of lignin induced by MAMS pretreatment led to the increase of its hydrophilicity, which could weaken the binding force between cellulase and lignin and reduce the nonproductive binding of cellulase enzymes to lignin. CONCLUSIONS MAMS pretreatment significantly enhanced the enzymatic digestibility of polysaccharides substrate by overcoming biomass recalcitrance without the removal of lignin from enzymatic hydrolysis system.
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Affiliation(s)
- Yanjuan Zhang
- School of Chemistry and Chemical Engineering, Guangxi University, Nanning, 530004 China
- State Key Laboratory of Non-Food Biomass and Enzyme Technology, Guangxi Academy of Sciences, Nanning, 530007 China
| | - Min Huang
- School of Chemistry and Chemical Engineering, Guangxi University, Nanning, 530004 China
| | - Jianmei Su
- School of Chemistry and Chemical Engineering, Guangxi University, Nanning, 530004 China
| | - Huayu Hu
- School of Chemistry and Chemical Engineering, Guangxi University, Nanning, 530004 China
- State Key Laboratory of Non-Food Biomass and Enzyme Technology, Guangxi Academy of Sciences, Nanning, 530007 China
| | - Mei Yang
- School of Chemistry and Chemical Engineering, Guangxi University, Nanning, 530004 China
| | - Zuqiang Huang
- School of Chemistry and Chemical Engineering, Guangxi University, Nanning, 530004 China
- State Key Laboratory of Non-Food Biomass and Enzyme Technology, Guangxi Academy of Sciences, Nanning, 530007 China
| | - Dong Chen
- State Key Laboratory of Non-Food Biomass and Enzyme Technology, Guangxi Academy of Sciences, Nanning, 530007 China
| | - Juan Wu
- School of Chemistry and Chemical Engineering, Guangxi University, Nanning, 530004 China
| | - Zhenfei Feng
- School of Chemistry and Chemical Engineering, Guangxi University, Nanning, 530004 China
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13
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Screening of Fusarium sp. for xylan and cellulose hydrolyzing enzymes and perspectives for the saccharification of delignified sugarcane bagasse. BIOCATALYSIS AND AGRICULTURAL BIOTECHNOLOGY 2018. [DOI: 10.1016/j.bcab.2018.09.010] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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14
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Exploring the gut of Helicoverpa armigera for cellulose degrading bacteria and evaluation of a potential strain for lignocellulosic biomass deconstruction. Process Biochem 2018. [DOI: 10.1016/j.procbio.2018.08.001] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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15
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Shahabazuddin M, Sarat Chandra T, Meena S, Sukumaran RK, Shetty NP, Mudliar SN. Thermal assisted alkaline pretreatment of rice husk for enhanced biomass deconstruction and enzymatic saccharification: Physico-chemical and structural characterization. BIORESOURCE TECHNOLOGY 2018; 263:199-206. [PMID: 29747096 DOI: 10.1016/j.biortech.2018.04.027] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/21/2018] [Revised: 04/04/2018] [Accepted: 04/06/2018] [Indexed: 05/21/2023]
Abstract
Thermal assisted alkaline pretreatment (TAAP) of rice husk (RH) was investigated to facilitate enzymatic saccharification by enhancing the enzyme accessibility to cellulosic components. Statistically guided experiments based on the Box-Behnken design involving four factors viz. biomass loading, particle size, NaOH loading and reaction time was considered for optimization. The maximum sugar yield of 371 mg g-1 biomass was obtained at optimized pretreatment condition [biomass loading (10% w/w), particle size (0.25-0.625 mm), NaOH loading (2% w/w), and reaction time (40 min)]. The TAAP of RH resulted in the efficient removal of lignin (14.9-54% (w/w)) with low hemicellulose solubilization [10.7-33.1% (w/w)] and with a simultaneous increase in cellulose concentration [32.65-51.65% (w/w)]. The SEM analysis indicated increased porosity and biomass disruption during TAAP. The FTIR analysis showed progressive removal of noncellulosic constituents, and XRD analysis revealed an increase in cellulose crystallinity post-TAAP indicating the effectiveness of pretreatment.
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Affiliation(s)
- Md Shahabazuddin
- Department of Plant Cell Biotechnology, CSIR-Central Food Technological Research Institute, Mysore, Karnataka, India; AcSIR-Academy of Scientific and Innovative Research, India
| | - T Sarat Chandra
- Department of Plant Cell Biotechnology, CSIR-Central Food Technological Research Institute, Mysore, Karnataka, India
| | - S Meena
- Microbial Processes and Technology Division, CSIR-National Institute for Interdisciplinary Science and Technology, Trivandrum, Kerala, India
| | - R K Sukumaran
- Microbial Processes and Technology Division, CSIR-National Institute for Interdisciplinary Science and Technology, Trivandrum, Kerala, India
| | - N P Shetty
- Department of Plant Cell Biotechnology, CSIR-Central Food Technological Research Institute, Mysore, Karnataka, India
| | - S N Mudliar
- Department of Plant Cell Biotechnology, CSIR-Central Food Technological Research Institute, Mysore, Karnataka, India.
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16
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Wei W, Wu S. Enhanced enzymatic hydrolysis of eucalyptus by synergy of zinc chloride hydrate pretreatment and bovine serum albumin. BIORESOURCE TECHNOLOGY 2017; 245:289-295. [PMID: 28898822 DOI: 10.1016/j.biortech.2017.08.133] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/29/2017] [Revised: 08/20/2017] [Accepted: 08/21/2017] [Indexed: 06/07/2023]
Abstract
Enhancement of eucalyptus enzymatic saccharification by synergy of ZnCl2 hydrate pretreatment and bovine serum albumin (BSA) was investigated in this study. The result showed that the ZnCl2 hydrate pretreatment could not only selectively extract up to ∼100% of the hemicellulose from eucalyptus, but also convert portion of high crystalline cellulose I into low crystalline cellulose II, which both beneficial for enhancing subsequent pretreated solids enzymatic saccharification. The addition of BSA into enzymatic hydrolysis step could significantly promote the glucose release from pretreated solids, especially, under the low enzyme loading. Furthermore, the material balance indicated that the highest glucose yield of this study was 35.5g/100g raw material, which representing 90.3% of glucose in raw eucalyptus, combined with the xylose yield, 13.9g/100g eucalyptus, it can be concluded that ZnCl2 hydrate pretreatment offered the potential to co-produce xylose and glucose from eucalyptus.
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Affiliation(s)
- Weiqi Wei
- State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou 510640, China
| | - Shubin Wu
- State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou 510640, China.
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17
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Ali SS, Abomohra AEF, Sun J. Effective bio-pretreatment of sawdust waste with a novel microbial consortium for enhanced biomethanation. BIORESOURCE TECHNOLOGY 2017; 238:425-432. [PMID: 28458176 DOI: 10.1016/j.biortech.2017.03.187] [Citation(s) in RCA: 44] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/05/2017] [Revised: 03/28/2017] [Accepted: 03/30/2017] [Indexed: 05/25/2023]
Abstract
Anaerobic digestion (AD) is considered an efficient cost-effective technology for sustainable biogas production from lignocellulosic wastes. A novel lignocellulosic degradation microbial consortium (LCDC) was isolated from rotten sawdust, and further used for sawdust pretreatment prior to AD. Results showed that pretreatment of sawdust for 10days led to significant reduction in cellulose, hemicelluloses, and lignin contents by 37.5%, 39.6%, and 56.7%, respectively, with respect to the control. In addition, the pretreatment enhanced cumulative biogas yield, which reached its maximum value of 312.0Lkg-1VS after 28days of AD (25.6% higher than the corresponding control). Moreover, the maximum significant cumulative methane yield was recorded after 28days of AD of the pretreated sawdust (155.2Lkg-1VS), which represented 72.6% higher than the corresponding control. Significantly higher biomethane yield from sawdust pretreated with LCDC confirms that this process is more economical than the previous reports.
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Affiliation(s)
- Sameh S Ali
- Biofuels Institute, School of the Environment and Safety Engineering, Jiangsu University, 212013 Zhenjiang, China; Botany Department, Faculty of Science, Tanta University, 31527 Tanta, Egypt
| | - Abd El-Fatah Abomohra
- School of Energy and Power Engineering, Jiangsu University, 212013 Zhenjiang, China; Botany Department, Faculty of Science, Tanta University, 31527 Tanta, Egypt
| | - Jianzhong Sun
- Biofuels Institute, School of the Environment and Safety Engineering, Jiangsu University, 212013 Zhenjiang, China.
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