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Souza IN, Rodrigues LCV, Soares CMF, Buarque FS, Souza RL, Lima ÁS. Deep Eutectic Solvent-Based Aqueous Two-Phase Systems and Their Application in Partitioning of Phenol Compounds. Molecules 2024; 29:4383. [PMID: 39339378 PMCID: PMC11434047 DOI: 10.3390/molecules29184383] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2024] [Revised: 08/26/2024] [Accepted: 09/12/2024] [Indexed: 09/30/2024] Open
Abstract
This work studies the partition of phenolic compounds, namely caffeic acid, syringic acid, vanillic acid, ferulic acid, and vanillin, in aqueous two-phase systems (ATPSs) formed by acetonitrile and deep eutectic solvents (DESs) based on choline chloride ([Ch]Cl) and carbohydrates (sucrose, d-glucose, d-mannose, arabinose, and d-xylose). The binodal curves built at 25 °C and 0.1 MPa using DES were compared with ATPS composed of [Ch]Cl and the same carbohydrates. The ability to form ATPS depends on the number and kind of hydroxyl groups in DES's hydrogen-bond donor compound (carbohydrates). ATPS based on DES showed biphasic regions larger than the systems based on [Ch]Cl and carbohydrates alone due to the larger hydrophilicity of DES. The ATPS were used to study the partition of the phenolic compounds. For all the systems, the biomolecules preferentially partitioned to the acetonitrile-rich phase (K > 1), and the best recovery in the top phase ranged between 53.36% (caffeic acid) and 90.09% (vanillin). According to the remarkable results, DES-based ATPS can selectively separate ferulic acid and vanillin for the top phase and syringic, caffeic, and vanillic acids for the bottom phase, achieving a selectivity higher than two.
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Affiliation(s)
- Isabela N Souza
- Post-Graduated Program on Process Engineering, Tiradentes University, Aracaju 49032-490, SE, Brazil
| | - Lucas C V Rodrigues
- Post-Graduate Program on Chemical Engineering, Federal University of Bahia, Salvador 40210-910, BA, Brazil
| | - Cleide M F Soares
- Post-Graduated Program on Process Engineering, Tiradentes University, Aracaju 49032-490, SE, Brazil
- Instituto de Tecnologia e Pesquisa, Aracaju 49032-490, SE, Brazil
| | - Filipe S Buarque
- Biochemical Engineering Department, School of Chemistry, Federal University of Rio de Janeiro, Rio de Janeiro 21941-909, RJ, Brazil
| | - Ranyere L Souza
- Post-Graduated Program on Process Engineering, Tiradentes University, Aracaju 49032-490, SE, Brazil
- Instituto de Tecnologia e Pesquisa, Aracaju 49032-490, SE, Brazil
| | - Álvaro S Lima
- Post-Graduate Program on Chemical Engineering, Federal University of Bahia, Salvador 40210-910, BA, Brazil
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Tjandrawinata RR, Nurkolis F. A Comparative Analysis on Impact of Extraction Methods on Carotenoids Composition, Antioxidants, Antidiabetes, and Antiobesity Properties in Seagrass Enhalus acoroides: In Silico and In Vitro Study. Mar Drugs 2024; 22:365. [PMID: 39195481 DOI: 10.3390/md22080365] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2024] [Revised: 08/07/2024] [Accepted: 08/10/2024] [Indexed: 08/29/2024] Open
Abstract
Enhalus acoroides, a tropical seagrass, is known for its significant contribution to marine ecosystems and its potential health benefits due to bioactive compounds. This study aims to compare the carotenoid levels in E. acoroides using green extraction via ultrasound-assisted extraction (UAE) and microwave-assisted extraction (MAE) and to evaluate the biological properties of these extracts against oxidative stress, diabetes, and obesity through in silico and in vitro analyses. E. acoroides samples were collected from Manado City, Indonesia, and subjected to UAE and MAE. The extracts were analyzed using UHPLC-ESI-MS/MS to identify carotenoids, including β-carotene, lutein, lycopene, β-cryptoxanthin, and zeaxanthin. In silico analysis was conducted to predict the compounds' bioactivity, toxicity, and drug-likeness using WAY2DRUG PASS and molecular docking with CB-Dock2. The compounds C3, C4, and C7 demonstrated notable interactions, with key metabolic proteins and microRNAs, further validating their potential therapeutic benefits. In vitro assays evaluated antioxidant activities using DPPH and FRAP assays, antidiabetic properties through α-glucosidase and α-amylase inhibition, and antiobesity effects via lipase inhibition and MTT assay with 3T3-L1 cells. Results indicated that both UAE and MAE extracts exhibited significant antioxidant, antidiabetic, and antiobesity activities. MAE extracts showed higher carotenoid content and greater biological activity compared to UAE extracts. These findings suggest that E. acoroides, mainly when extracted using MAE, has promising potential as a source of natural bioactive compounds for developing marine-based antioxidant, antidiabetic, and antiobesity agents. This study supplements existing literature by providing insights into the efficient extraction methods and the therapeutic potential of E. acoroides carotenoids.
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Affiliation(s)
- Raymond Rubianto Tjandrawinata
- Center for Pharmaceutical and Nutraceutical Research and Policy, Atma Jaya Catholic University of Indonesia, Jakarta 12930, Indonesia
| | - Fahrul Nurkolis
- Department of Chemistry, Faculty of Mathematics and Natural Science, Universitas Padjadjaran, Sumedang 45363, Indonesia
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3
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Cassani L, Silva A, Carpena M, Pellegrini MC, García-Pérez P, Grosso C, Barroso MF, Simal-Gandara J, Gómez-Zavaglia A, Prieto MA. Phytochemical compounds with promising biological activities from Ascophyllum nodosum extracts using microwave-assisted extraction. Food Chem 2024; 438:138037. [PMID: 38011789 DOI: 10.1016/j.foodchem.2023.138037] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2023] [Revised: 11/04/2023] [Accepted: 11/16/2023] [Indexed: 11/29/2023]
Abstract
Phytochemical-rich antioxidant extracts were obtained from Ascophyllum nodosum (AN) using microwave-assisted extraction (MAE). Critical extraction factors such as time, pressure, and ethanol concentration were optimized by response surface methodology with a circumscribed central composite design. Under the optimal MAE conditions (3 min, 10.4 bar, 46.8 % ethanol), the maximum recovery of phytochemical compounds (polyphenols and fucoxanthin) with improved antioxidant activity from AN was obtained. In addition, the optimized AN extract showed significant biological activities as it was able to scavenge reactive oxygen and nitrogen species, inhibit central nervous system-related enzymes, and exhibit cytotoxic activity against different cancer cell lines. In addition, the optimized AN extract showed antimicrobial, and anti-quorum sensing activities, indicating that this extract could offer direct and indirect protection against infection by pathogenic microorganisms. This work demonstrated that the sustainably obtained AN extract could be an emerging, non-toxic, and natural ingredient with potential to be included in different applications.
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Affiliation(s)
- Lucía Cassani
- Universidade de Vigo, Nutrition and Bromatology Group, Department of Analytical Chemistry and Food Science, Instituto de Agroecoloxía e Alimentación (IAA) - CITEXVI, 36310 Vigo, Spain.
| | - Aurora Silva
- Universidade de Vigo, Nutrition and Bromatology Group, Department of Analytical Chemistry and Food Science, Instituto de Agroecoloxía e Alimentación (IAA) - CITEXVI, 36310 Vigo, Spain; REQUIMTE/LAQV, Instituto Superior de Engenharia do Porto, Instituto Politécnico do Porto, Rua Dr António Bernardino de Almeida 431, 4200-072 Porto, Portugal
| | - Maria Carpena
- Universidade de Vigo, Nutrition and Bromatology Group, Department of Analytical Chemistry and Food Science, Instituto de Agroecoloxía e Alimentación (IAA) - CITEXVI, 36310 Vigo, Spain
| | - María Celeste Pellegrini
- Grupo de Investigación en Ingeniería en Alimentos (GIIA), Instituto de Ciencia y Tecnología de alimentos y ambiente (INCITAA, CIC-UNMDP), Facultad de Ingeniería, Universidad Nacional de Mar del Plata, B7600 Mar del Plata, Argentina
| | - Pascual García-Pérez
- Universidade de Vigo, Nutrition and Bromatology Group, Department of Analytical Chemistry and Food Science, Instituto de Agroecoloxía e Alimentación (IAA) - CITEXVI, 36310 Vigo, Spain; Department for Sustainable Food Process, Università Cattolica del Sacro Cuore, Via Emilia Parmense 84, 29122 Piacenza, Italy
| | - Clara Grosso
- REQUIMTE/LAQV, Instituto Superior de Engenharia do Porto, Instituto Politécnico do Porto, Rua Dr António Bernardino de Almeida 431, 4200-072 Porto, Portugal
| | - Maria Fátima Barroso
- REQUIMTE/LAQV, Instituto Superior de Engenharia do Porto, Instituto Politécnico do Porto, Rua Dr António Bernardino de Almeida 431, 4200-072 Porto, Portugal
| | - Jesus Simal-Gandara
- Universidade de Vigo, Nutrition and Bromatology Group, Department of Analytical Chemistry and Food Science, Instituto de Agroecoloxía e Alimentación (IAA) - CITEXVI, 36310 Vigo, Spain
| | - Andrea Gómez-Zavaglia
- Center for Research and Development in Food Cryotechnology (CIDCA, CCT-CONICET La Plata), RA1900 La Plata, Argentina
| | - Miguel A Prieto
- Universidade de Vigo, Nutrition and Bromatology Group, Department of Analytical Chemistry and Food Science, Instituto de Agroecoloxía e Alimentación (IAA) - CITEXVI, 36310 Vigo, Spain
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4
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Lourenço-Lopes C, Carreira-Casais A, Carperna M, Barral-Martinez M, Chamorro F, Jiménez-López C, Cassani L, Simal-Gandara J, Prieto MA. Emerging Technologies to Extract Fucoxanthin from Undaria pinnatifida: Microwave vs. Ultrasound Assisted Extractions. Mar Drugs 2023; 21:282. [PMID: 37233476 PMCID: PMC10263219 DOI: 10.3390/md21050282] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2023] [Revised: 04/19/2023] [Accepted: 04/22/2023] [Indexed: 05/27/2023] Open
Abstract
Macroalgae are an extensive resource for the obtention of bioactive compounds, mainly phenolic compounds, phlorotannins, and pigments. Fucoxanthin (Fx) is the most abundant pigment present in brown algae and has shown several useful bioactivities that can be used to fortify products in the food and cosmetic industries. Nevertheless, to date, there is still insufficient literature reporting on the extraction yield of Fx from U. pinnatifida species from green technologies. In this regard, the present study aims to optimize the extraction conditions to obtain the highest Fx yield from U. pinnatifida through emerging techniques, namely microwave-assisted extraction (MAE) and ultrasound-assisted extraction (UAE). These methods will be compared with the conventional methodologies of heat-assisted extraction (HAE) and Soxhlet-assisted extraction (SAE). According to our results, even though the extraction yield could be slightly higher when using MAE than UAE, the Fx concentration obtained from the alga was double when using UAE. Thus, the Fx ratio in the final extract reached values of 124.39 mg Fx/g E. However, the optimal conditions should also be considered since UAE needed 30 min to perform the extraction, whereas MAE was able to obtain 58.83 mg Fx/g E in only 3 min and 2 bar, meaning less energy expenditure and minimum cost function. To our knowledge, this study obtains the highest concentrations of Fx ever reported (58.83 mg Fx/g E for MAE and 124.39 mg Fx/g E for UAE), with low energy consumption and short times (3.00 min for MAE and 35.16 min for UAE). Any of these results could be selected for further experiments and proposed for industrial scaling-up.
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Affiliation(s)
- Catarina Lourenço-Lopes
- Nutrition and Bromatology Group, Analytical and Food Chemistry Department, Faculty of Food Science and Technology, University of Vigo, Ourense Campus, E-32004 Ourense, Spain; (C.L.-L.); (A.C.-C.); (M.C.); (M.B.-M.); (F.C.); (M.A.P.)
| | - Anxo Carreira-Casais
- Nutrition and Bromatology Group, Analytical and Food Chemistry Department, Faculty of Food Science and Technology, University of Vigo, Ourense Campus, E-32004 Ourense, Spain; (C.L.-L.); (A.C.-C.); (M.C.); (M.B.-M.); (F.C.); (M.A.P.)
| | - Maria Carperna
- Nutrition and Bromatology Group, Analytical and Food Chemistry Department, Faculty of Food Science and Technology, University of Vigo, Ourense Campus, E-32004 Ourense, Spain; (C.L.-L.); (A.C.-C.); (M.C.); (M.B.-M.); (F.C.); (M.A.P.)
| | - Marta Barral-Martinez
- Nutrition and Bromatology Group, Analytical and Food Chemistry Department, Faculty of Food Science and Technology, University of Vigo, Ourense Campus, E-32004 Ourense, Spain; (C.L.-L.); (A.C.-C.); (M.C.); (M.B.-M.); (F.C.); (M.A.P.)
| | - Franklin Chamorro
- Nutrition and Bromatology Group, Analytical and Food Chemistry Department, Faculty of Food Science and Technology, University of Vigo, Ourense Campus, E-32004 Ourense, Spain; (C.L.-L.); (A.C.-C.); (M.C.); (M.B.-M.); (F.C.); (M.A.P.)
| | - Cecilia Jiménez-López
- Center for Biomedical Research (CINBIO), Neurocircuits Group, Department of Functional Biology and Health Sciences, Campus Universitario Lagoas, Marcosende, Universidade de Vigo, 36310 Vigo, Spain;
| | - Lucia Cassani
- Nutrition and Bromatology Group, Analytical and Food Chemistry Department, Faculty of Food Science and Technology, University of Vigo, Ourense Campus, E-32004 Ourense, Spain; (C.L.-L.); (A.C.-C.); (M.C.); (M.B.-M.); (F.C.); (M.A.P.)
- Centro de Investigação de Montanha (CIMO), Instituto Politécnico de Bragança, Campus de Santa Apolónia, 5300-253 Bragança, Portugal
| | - Jesus Simal-Gandara
- Nutrition and Bromatology Group, Analytical and Food Chemistry Department, Faculty of Food Science and Technology, University of Vigo, Ourense Campus, E-32004 Ourense, Spain; (C.L.-L.); (A.C.-C.); (M.C.); (M.B.-M.); (F.C.); (M.A.P.)
| | - Miguel A. Prieto
- Nutrition and Bromatology Group, Analytical and Food Chemistry Department, Faculty of Food Science and Technology, University of Vigo, Ourense Campus, E-32004 Ourense, Spain; (C.L.-L.); (A.C.-C.); (M.C.); (M.B.-M.); (F.C.); (M.A.P.)
- Centro de Investigação de Montanha (CIMO), Instituto Politécnico de Bragança, Campus de Santa Apolónia, 5300-253 Bragança, Portugal
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5
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Sharma P, Kashyap P, Dhakane A. Exploring the antioxidant potential of fermented turmeric pulp: effect of extraction methods and microencapsulation. Prep Biochem Biotechnol 2023; 53:968-977. [PMID: 36592954 DOI: 10.1080/10826068.2022.2163256] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Curcumin is one of the major constituents of turmeric which possess multifarious therapeutic properties. However, owing of its limited solubility in water its bioavailability is poor. Thus, attempts have been made to increase the solubility of curcumin by fermenting turmeric followed by extraction and encapsulation. Lactobacillus fermentum was used for the fermentation of raw turmeric pulp. The influence of Lactobacillus fermentation and different extraction methods (conventional solvent extraction (CSE), ultrasound (UAE) and microwave-assisted extraction (MAE)) on total phenolic content (TPC), flavonoid content, antioxidant activity and curcumin content were analyzed. Further, to increase the stability of extract, different concentrations of maltodextrin were used to microencapsulate the curcumin extract. The results showed that, Lactobacillus fermentation increased the TPC and antioxidant activity from 5.59 ± 0.20 to 6.27 ± 0.28 mg GAE/g and 67.49 ± 1.51 to 79.00 ± 2.20%, respectively. MAE showed highest TPC (7.88 ± 0.08 mg GAE/g), antioxidant activity (94 ± 1.57%) and curcumin content (0.866 ± 0.05 mg/g) followed by UAE and CSE. Maximum yield of curcumin extract was observed in MAE, UAE and CSE as 59.93, 47.09 and 29.44% respectively, higher than non-fermented turmeric pulp. Maltodextrin percentage showed a significant influence on bio-functional properties of encapsulated powder. However, 20% maltodextrin exhibited better bio-functional properties as compared to other concentrations.
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Affiliation(s)
- Poorva Sharma
- Department of Food Technology and Nutrition, School of Agriculture, Lovely Professional University, Phagwara, Punjab, India
| | - Piyush Kashyap
- Department of Food Technology and Nutrition, School of Agriculture, Lovely Professional University, Phagwara, Punjab, India
| | - Akshay Dhakane
- Department of Food Technology and Nutrition, School of Agriculture, Lovely Professional University, Phagwara, Punjab, India
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6
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Wang J, Yuan H, Wu Y, Yu J, Ali B, Zhang J, Tang Z, Xie J, Lyu J, Liao W. Application of 5-aminolevulinic acid promotes ripening and accumulation of primary and secondary metabolites in postharvest tomato fruit. Front Nutr 2022; 9:1036843. [PMID: 36438749 PMCID: PMC9686309 DOI: 10.3389/fnut.2022.1036843] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2022] [Accepted: 10/19/2022] [Indexed: 08/27/2023] Open
Abstract
5-Aminolevulinic acid (ALA) plays a vital role in promoting plant growth, enhancing stress resistance, and improving fruit yield and quality. In the present study, tomato fruits were harvested at mature green stage and sprayed with 200 mg L-1 ALA on fruit surface. During ripening, the estimation of primary and secondary metabolites, carotenoids, and chlorophyll contents, and the expression levels of key genes involved in their metabolism were carried out. The results showed that ALA significantly promoted carotenoids accumulation by upregulating the gene expression levels of geranylgeranyl diphosphate synthase (GGPPS, encoding geranylgeranyl diphosphate synthase), phytoene synthase 1 (PSY1, encoding phytoene synthase), phytoene desaturase (PDS, encoding phytoene desaturase), and lycopeneβ-cyclase (LCYB, encoding lycopene β-cyclase), whereas chlorophyll content decreased by downregulating the expression levels of Mg-chelatase (CHLH, encoding Mg-chelatase) and protochlorophyllide oxidoreductase (POR, encoding protochlorophyllide oxidoreductase). Besides, the contents of soluble solids, vitamin C, soluble protein, free amino acids, total soluble sugar, organic acid, total phenol, and flavonoid were increased in ALA-treated tomato fruit, but the fruit firmness was decreased. These results indicated that the exogenous ALA could not only promote postharvest tomato fruit ripening but also improve the internal nutritional and flavor quality of tomato fruit.
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Affiliation(s)
- Junwen Wang
- College of Horticulture, Gansu Agricultural University, Lanzhou, China
| | - Hong Yuan
- College of Horticulture, Gansu Agricultural University, Lanzhou, China
| | - Yue Wu
- College of Horticulture, Gansu Agricultural University, Lanzhou, China
| | - Jihua Yu
- College of Horticulture, Gansu Agricultural University, Lanzhou, China
- State Key Laboratory of Aridland Crop Science, Gansu Agricultural University, Lanzhou, China
| | - Basharat Ali
- Department of Agricultural Engineering, Khwaja Fareed University of Engineering and Information Technology, Rahim Yar Khan, Pakistan
| | - Jing Zhang
- College of Horticulture, Gansu Agricultural University, Lanzhou, China
| | - Zhongqi Tang
- College of Horticulture, Gansu Agricultural University, Lanzhou, China
| | - Jianming Xie
- College of Horticulture, Gansu Agricultural University, Lanzhou, China
| | - Jian Lyu
- College of Horticulture, Gansu Agricultural University, Lanzhou, China
| | - Weibiao Liao
- College of Horticulture, Gansu Agricultural University, Lanzhou, China
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7
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Zin MM, Nagy K, Bánvölgyi S, Abrankó L, Nath A. Effect of microwave pretreatment on the extraction of antioxidant‐rich red color betacyanin, phenolic, and flavonoid from the crown of Cylindra‐type beetroot (
Beta vulgaris
L.). J FOOD PROCESS ENG 2022. [DOI: 10.1111/jfpe.14175] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Moh Moh Zin
- Department of Food Process Engineering Institute of Food Science and Technology, Hungarian University of Agriculture and Life Sciences Budapest Hungary
| | - Katalin Nagy
- Department of Food Chemistry and Analytical Chemistry Institute of Food Science and Technology, Hungarian University of Agriculture and Life Sciences Budapest Hungary
| | - Szilvia Bánvölgyi
- Department of Food Process Engineering Institute of Food Science and Technology, Hungarian University of Agriculture and Life Sciences Budapest Hungary
| | - László Abrankó
- Department of Food Chemistry and Analytical Chemistry Institute of Food Science and Technology, Hungarian University of Agriculture and Life Sciences Budapest Hungary
| | - Arijit Nath
- Department of Food Process Engineering Institute of Food Science and Technology, Hungarian University of Agriculture and Life Sciences Budapest Hungary
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Recovery of Antioxidants from Tomato Seed Industrial Wastes by Microwave-Assisted and Ultrasound-Assisted Extraction. Foods 2022; 11:foods11193068. [PMID: 36230144 PMCID: PMC9562903 DOI: 10.3390/foods11193068] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2022] [Revised: 09/26/2022] [Accepted: 09/28/2022] [Indexed: 11/26/2022] Open
Abstract
Tomato seed (TS) wastes are obtained in large amounts from the tomato processing industry. In this work, microwave-assisted extraction (MAE) and ultrasound-assisted extraction (UAE) of antioxidant compounds from TS were optimized by using response surface methodology. The effect of MAE and UAE main extraction parameters was studied on total phenolic content (TPC) and antioxidant activity (DPPH) responses. Antioxidant, structural, morphological, and thermal properties of MAE and UAE extracts were evaluated. A great influence of ethanol concentration was observed in both extraction methods. Optimal MAE conditions were determined as 15 min, 80 °C, 63% ethanol and 80 mL, with a desirability value of 0.914, whereas 15 min, 61% ethanol and 85% amplitude (desirability = 0.952) were found as optimal conditions for UAE. MAE extracts exhibited higher TPC and antioxidant activity values compared to UAE (1.72 ± 0.04 and 1.61 ± 0.03 mg GAE g TS−1 for MAE and UAE, respectively). Thermogravimetric analysis (TGA) results suggested the presence of some high molecular weight compounds in UAE extracts. Chlorogenic acid, rutin and naringenin were identified and quantified by HPLC-DAD-MS as the main polyphenols found by MAE and UAE, showing MAE extracts higher individual phenolics content (1.11–2.99 mg 100 g TS−1). MAE and UAE have shown as effective green techniques for extracting bioactive molecules with high antioxidant activity from TS with high potential to be scaled-up for valorizing of TS industrial wastes.
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9
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Roy S, Sarkar T, Chakraborty R. Vegetable seeds: A new perspective in future food development. J FOOD PROCESS PRES 2022. [DOI: 10.1111/jfpp.17118] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Affiliation(s)
- Sarita Roy
- Department of Food Technology and Biochemical Engineering Jadavpur University Kolkata India
| | - Tanmay Sarkar
- Malda Polytechnic West Bengal State Council of Technical Education, Govt. of West Bengal Malda India
| | - Runu Chakraborty
- Department of Food Technology and Biochemical Engineering Jadavpur University Kolkata India
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10
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Vorobyova V, Skiba M, Andrey K. Tomato pomace extract as a novel corrosion inhibitor for the steel in industrial media: The role of chemical transformation of the extract and proinhibition effect. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2022.133155] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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11
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Babaoğlu AS, Dilek NM, Karakaya M, Unal K. Valorization of sugar beet molasses powder by microwave and ultrasound‐assisted extractions of bioactive compounds: An optimization study. J FOOD PROCESS PRES 2022. [DOI: 10.1111/jfpp.16820] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Ali Samet Babaoğlu
- Department of Food Engineering, Agriculture Faculty Selçuk University Konya Turkey
| | - Nazik Meziyet Dilek
- Nutrition and Dietetics, Akşehir Kadir Yallagöz School of Health Selçuk University Konya Turkey
| | - Mustafa Karakaya
- Department of Food Engineering, Agriculture Faculty Selçuk University Konya Turkey
| | - Kubra Unal
- Department of Food Engineering, Agriculture Faculty Selçuk University Konya Turkey
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Valorization of Aloe vera Skin By-Products to Obtain Bioactive Compounds by Microwave-Assisted Extraction: Antioxidant Activity and Chemical Composition. Antioxidants (Basel) 2022; 11:antiox11061058. [PMID: 35739955 PMCID: PMC9220353 DOI: 10.3390/antiox11061058] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2022] [Revised: 05/24/2022] [Accepted: 05/25/2022] [Indexed: 02/04/2023] Open
Abstract
Aloe vera skin (AVS) is a major by-product of Aloe processing plants all over the world. In this study, response surface methodology was used to optimize microwave-assisted extraction (MAE) of bioactive compounds from AVS. The influence of extraction parameters, such as ethanol concentration (%Et), extraction temperature (T), time (t) and solvent volume (V), on extraction yield (Y), total phenolic content (TPC), antioxidant activity (DPPH and FRAP methods) and aloin content, was studied. Optimum extraction conditions were determined as 80% ethanol, 80 °C, 36.6 min and 50 mL and optimized extracts showed interesting contents of polyphenols and antioxidant performance. The phenolic profile was determined by HPLC-DAD/MS and some major phenolic compounds, such as aloin A, aloin B, aloesin, aloe-emodin, aloeresin D, orientin, cinnamic acid and chlorogenic acid, were quantified while eight other compounds were tentatively identified. Moreover, structural and thermal properties were studied by FTIR and TGA analyses, respectively. The obtained results suggested the potential of AVS as a promising source of bioactive compounds, thus increasing the added value of this agricultural waste.
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Extraction of phenolic compounds from tomato pomace using choline chloride–based deep eutectic solvents. JOURNAL OF FOOD MEASUREMENT AND CHARACTERIZATION 2022. [DOI: 10.1007/s11694-021-01238-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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14
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Chada PSN, Santos PH, Rodrigues LGG, Goulart GAS, Azevedo Dos Santos JD, Maraschin M, Lanza M. Non-conventional techniques for the extraction of antioxidant compounds and lycopene from industrial tomato pomace ( Solanum lycopersicum L.) using spouted bed drying as a pre-treatment. Food Chem X 2022; 13:100237. [PMID: 35498978 PMCID: PMC9040000 DOI: 10.1016/j.fochx.2022.100237] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2021] [Revised: 12/03/2021] [Accepted: 12/09/2021] [Indexed: 11/24/2022] Open
Abstract
The spouted bed dryer favored the recovery of antioxidants and lycopene. RSM was useful for the optimization of PLE and MAE parameters. PLE extracts showed the highest antioxidant activities. MAE extracts had the highest lycopene content.
This study aimed to use the non-conventional microwave-assisted extraction (MAE) and pressurized liquid extraction (PLE) techniques for recovering bioactive compounds from tomato pomace, a valuable agro-industrial waste. The raw material was previously dried using a spouted bed dryer and then submitted to extraction with green solvents. A response surface methodology (RSM) performed the optimization of MAE and PLE. Next, the yield and the antioxidant activity results were maximized, and the lycopene content of the optimum MAE and PLE extracts was assessed by high-performance liquid chromatography (HPLC). Additionally, a fraction of raw material was oven dried as a comparison. The PLE extract exhibited the highest antioxidant activity, whereas the MAE extract showed the highest lycopene content (59.66 µg lycopene/g extract), which represents a 66.93% lycopene recovery compared to a standard technique with acetone. The remarkable results show that the non-conventional drying and extraction techniques were effective in valorizing this neglected material.
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Affiliation(s)
- Paulo Sergio Nunes Chada
- Department of Chemical and Food Engineering (EQA), Federal University of Santa Catarina (UFSC), P.O. Box 476, Postal code: 88040-900, Florianópolis, SC, Brazil
| | - Pedro Henrique Santos
- Department of Chemical and Food Engineering (EQA), Federal University of Santa Catarina (UFSC), P.O. Box 476, Postal code: 88040-900, Florianópolis, SC, Brazil
| | - Luiz Gustavo Gonçalves Rodrigues
- Department of Chemical and Food Engineering (EQA), Federal University of Santa Catarina (UFSC), P.O. Box 476, Postal code: 88040-900, Florianópolis, SC, Brazil
| | | | | | - Marcelo Maraschin
- Department of Microbiology, Immunology, and Parasitology, Federal University of Santa Catarina (UFSC), P.O. Box 476, Postal code: 88040-900, Florianópolis, SC, Brazil
| | - Marcelo Lanza
- Department of Chemical and Food Engineering (EQA), Federal University of Santa Catarina (UFSC), P.O. Box 476, Postal code: 88040-900, Florianópolis, SC, Brazil
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Microwave-Assisted Extraction of Anticancer Flavonoid, 2′,4′-Dihydroxy-6′-Methoxy-3′,5′-Dimethyl Chalcone (DMC), Rich Extract from Syzygium nervosum Fruits. Molecules 2022; 27:molecules27041397. [PMID: 35209190 PMCID: PMC8877704 DOI: 10.3390/molecules27041397] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2021] [Revised: 01/29/2022] [Accepted: 02/11/2022] [Indexed: 11/17/2022] Open
Abstract
2′,4′-Dihydroxy-6′-methoxy-3′,5′-dimethyl chalcone (DMC) is a biological flavonoid that is present in the fruits of Syzygium nervosum (Ma-Kiang in Thai). Microwave-assisted extraction (MAE), which utilizes microwave radiation to heat the extraction solvent quickly and effectively, was used to recover DMC-rich extract from Syzygium nervosum fruit. To determine the DMC content, a highly accurate and precise HPLC technique was developed. The influences of MAE conditions, including the solid–liquid ratio, microwave power, and microwave duration on the content of DMC, were sequentially employed by a single factor investigation and response surface methodology (RSM) exploratory design. The predicted quadratic models were fitted due to their highly significant (p < 0.0001) and excellent determination coefficient (R2 = 0.9944). The optimal conditions for producing DMC-rich extract were a ratio of sample to solvent of 1:35 g/mL, a microwave power of 350 W, and a microwave time of 38 min. Under the optimal MAE setting, the DMC content reached 1409 ± 24 µg/g dry sample, which was greater than that of the conventional heat reflux extraction (HRE) (1337 ± 37 µg/g dry sample) and maceration (1225 ± 81 µg/g dry sample). The DMC-rich extract obtained from MAE showed stronger anticancer activities against A549 (human lung cancer cells) and HepG2 (human liver cancer cells) than the individual DMC substance, which makes MAE an effective method for extracting essential phytochemicals from plants in the nature.
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Zin MM, Bánvölgyi S. Thermal Emerging Technology Approach for the Extraction of Bioactive compounds from Cylindra Beetroot (Peel, Flesh, and Stalk) with Green Solvent. J FOOD PROCESS PRES 2022. [DOI: 10.1111/jfpp.16436] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Moh Moh Zin
- Department of Food Engineering Hungarian University of Agriculture and Life Sciences Budapest Hungary
| | - Szilvia Bánvölgyi
- Department of Food Engineering Hungarian University of Agriculture and Life Sciences Budapest Hungary
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Saifullah M, Akanbi TO, McCullum R, Vuong QV. Optimization of Commercial Microwave Assisted-Extraction Conditions for Recovery of Phenolics from Lemon-Scented Tee Tree ( Leptospermum petersonii) and Comparison with Other Extraction Techniques. Foods 2021; 11:foods11010050. [PMID: 35010175 PMCID: PMC8750632 DOI: 10.3390/foods11010050] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2021] [Revised: 12/15/2021] [Accepted: 12/21/2021] [Indexed: 01/25/2023] Open
Abstract
The lemon-scented tea tree (LSTT) is an Australian native herb and is a rich source of essential oil and phenolics. The ETHOS X extraction system is known as a commercial microwave-assisted extraction (MAE) system for extracting bioactive compounds from plant materials. This study investigated the influence of soaking time, radiation time, microwave power, and sample to solvent ratio on the extraction efficiency of polyphenols and antioxidant properties from lemon-scented tea tree leaves and optimized the extraction conditions using response surface methodology (RSM). The effectiveness of ETHOS X was further compared with ultrasound-assisted extraction (UAE) and shaking water bath (SWB) techniques. The results revealed that soaking time did not significantly affect the recovery of phenolics from the leaves (p > 0.05). Thus, soaking is not required for the ETHOS X extraction of polyphenols from LSTT leaves. RSM was successfully applied to explore the impact of ETHOS X extraction conditions and optimize the extraction conditions. Radiation time significantly affects the recovery yield of phenolics (p < 0.05) positively, whereas irradiation power and sample to solvent ratio adversely influenced the extraction yields of phenolics. The optimal ETHOS X extraction conditions were: radiation time of 60 min, irradiation power of 600 W, and sample to solvent ratio of 2 g/100 mL. Under these conditions, 119.21 ± 7.09 mg of phenolic, 85.31 ± 4.55 mg of flavonoids, and 137.51 ± 12.52 mg of proanthocyanidins can be extracted from a gram of dried LSTT leaves. In comparison with UAE and SWB, ETHOS X is not more effective for the extraction of phenolics than UAE and SWB. However, this technique can save half of the solvent volume compared to UAE and SWB techniques.
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Affiliation(s)
- Md Saifullah
- School of Environmental and Life Sciences, College of Engineering, Science and Environment, The University of Newcastle, Ourimbah, NSW 2258, Australia; (M.S.); (T.O.A.); (R.M.)
- Department of Agro Product Processing Technology, Faculty of Applied Science and Technology, Jashore University of Science and Technology, Jashore 7408, Bangladesh
| | - Taiwo Olusesan Akanbi
- School of Environmental and Life Sciences, College of Engineering, Science and Environment, The University of Newcastle, Ourimbah, NSW 2258, Australia; (M.S.); (T.O.A.); (R.M.)
| | - Rebecca McCullum
- School of Environmental and Life Sciences, College of Engineering, Science and Environment, The University of Newcastle, Ourimbah, NSW 2258, Australia; (M.S.); (T.O.A.); (R.M.)
| | - Quan Van Vuong
- School of Environmental and Life Sciences, College of Engineering, Science and Environment, The University of Newcastle, Ourimbah, NSW 2258, Australia; (M.S.); (T.O.A.); (R.M.)
- Correspondence:
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Abstract
Tomato processing leads to the production of considerable amounts of residues, mainly in the form of tomato skins, seeds and vascular tissues, which still contain bioactive molecules of interest for food, pharmaceutical and nutraceutical industries. These include carotenoids, such as lycopene and β-carotene, tocopherols and sitosterols, among others. Supercritical fluid extraction is well positioned for the valorization of tomato residues prior to disposal, because it remains an environmentally safe extraction process, especially when using carbon dioxide as the solvent. In this article, we provide an extensive literature overview of the research on the supercritical fluid extraction of tomato residues. We start by identifying the most relevant extractables present in tomatoes (e.g., lycopene) and their main bioactivities. Then, the main aspects affecting the extraction performance are covered, starting with the differences between tomato matrixes (e.g., seeds, skins and pulp) and possible pretreatments to enhance extraction (e.g., milling, drying and enzymatic digestion). Finally, the effects of extraction conditions, such as pressure, temperature, cosolvent, flow rate and time, are discussed.
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Phenolic compounds in mango fruit: a review. JOURNAL OF FOOD MEASUREMENT AND CHARACTERIZATION 2021. [DOI: 10.1007/s11694-021-01192-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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Liu Z, Li H, Qi Y, Zhu Z, Huang D, Zhang K, Pan J, Wen L, Zou Z. Cinnamomum camphora leaves as a source of proanthocyanidins separated using microwave-assisted extraction method and evaluation of their antioxidant activity in vitro. ARAB J CHEM 2021. [DOI: 10.1016/j.arabjc.2021.103328] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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Tomato (Solanum lycopersicum L.) seed: A review on bioactives and biomedical activities. Biomed Pharmacother 2021; 142:112018. [PMID: 34449317 DOI: 10.1016/j.biopha.2021.112018] [Citation(s) in RCA: 43] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2021] [Revised: 07/30/2021] [Accepted: 08/07/2021] [Indexed: 02/07/2023] Open
Abstract
The processing of tomato fruit into puree, juices, ketchup, sauces, and dried powders generates a significant amount of waste in the form of tomato pomace, which includes seeds and skin. Tomato processing by-products, particularly seeds, are reservoirs of health-promoting macromolecules, such as proteins (bioactive peptides), carotenoids (lycopene), polysaccharides (pectin), phytochemicals (flavonoids), and vitamins (α-tocopherol). Health-promoting properties make these bioactive components suitable candidates for the development of novel food and nutraceutical products. This review comprehensively demonstrates the bioactive compounds of tomato seeds along with diverse biomedical activities of tomato seed extract (TSE) for treating cardiovascular ailments, neurological disorders, and act as antioxidant, anticancer, and antimicrobial agent. Utilization of bioactive components can improve the economic feasibility of the tomato processing industry and may help to reduce the environmental pollution generated by tomato by-products.
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Ultrasound-Assisted Extraction of Flavonoids from Kiwi Peel: Process Optimization and Bioactivity Assessment. APPLIED SCIENCES-BASEL 2021. [DOI: 10.3390/app11146416] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
The nutritional quality of kiwifruit has been highlighted by several studies, while its peel is typically discarded as a by-product with no commercial value. This study was carried out to optimize the ultrasound-assisted extraction (UAE) of phenolic compounds from kiwi peel. Three independent variables (time (t), ultrasonic power (P) and ethanol concentration (EtOH)) were combined in a five-level central composite rotatable design coupled with the response surface methodology (RSM). The extraction yield determined gravimetrically and the content of phenolic compounds identified by HPLC-DAD-ESI/MSn (namely two quercetin glycosides, one catechin isomer and one B-type (epi)catechin dimer) were the experimental responses used in the optimization. The polynomial models were successfully fitted to the experimental data and used to determine the optimal UAE conditions. The sonication of the sample at 94.4 W for 14.8 min, using 68.4% ethanol, resulted in a maximum of 1.51 ± 0.04 mg of flavonoids per g of extract, a result that allowed the experimental validation of the predictive model. The kiwi peel extract obtained under optimized conditions showed somehow promising bioactive properties, including antioxidant and antimicrobial effects, and no toxicity to Vero cells. Overall, this study contributes to the valorization of kiwi peel as a low-cost raw material for the development of natural ingredients (such as food preservatives) and also to the resource-use efficiency and circular bioeconomy.
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Development of a Natural Preservative from Chestnut Flowers: Ultrasound-Assisted Extraction Optimization and Functionality Assessment. CHEMOSENSORS 2021. [DOI: 10.3390/chemosensors9060141] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
This study was carried out with the aim of optimizing the ultrasound-assisted extraction (UAE) of phenolic compounds from male chestnut flowers (C. sativa Mill) to develop a bioactive extract with potential to be used as a natural antioxidant preservative ingredient in the food industry. Time (t, 1–39 min), solvent concentration (S, 0–100%), and ultrasonic power (P, 5–500 W) were used as the independent variables for a 5-level experimental circumscribed central composite design (CCCD) coupled with response surface methodology (RSM) to optimize the extraction of phenolic compounds by UAE. Regarding the variables, the three showed a significant effect on the extraction of phenolic compounds. The content of phenolic compounds (including flavonoids and tannins) and the extraction yield (extract weight gravimetrically assessed) were the response criteria for the optimization. Based on the statistically validated predictive polynomial models, it was possible to reach a maximum content of phenolic compounds at the global optimal conditions of 24 ± 3 min, 259 ± 16 W, and 51 ± 7% ethanol. Additionally, pentagalloyl-glucoside and trigalloyl-hexahydroxydiphenoyl-glucoside were the major phenolic compounds identified. The optimized extract was then analyzed for their biological properties. The bioactive potential of the chestnut flower extract obtained under these optimized conditions was evaluated using in vitro assays for antioxidant, anti-inflammatory, and antimicrobial activity, as well as cytotoxicity and hepatotoxicity tests. The results revealed that the enriched extract has antioxidant, antitumoral, and anti-inflammatory activities without toxicity issues. Overall, this study allowed to define the optimal conditions for the extraction of phenolic compounds from chestnuts male flowers by UAE, to obtain an enriched extract with biological properties that could be further used as a natural antioxidant ingredient with applications on functional foods.
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Silva AM, Pinto D, Fernandes I, de Freitas V, Cádiz-Gurrea MDLL, Costa P, Delerue-Matos C, Rodrigues F. An Insight into Kiwiberry Leaf Valorization: Phenolic Composition, Bioactivity and Health Benefits. Molecules 2021; 26:molecules26082314. [PMID: 33923470 PMCID: PMC8073277 DOI: 10.3390/molecules26082314] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2021] [Revised: 04/09/2021] [Accepted: 04/14/2021] [Indexed: 11/23/2022] Open
Abstract
During kiwiberry production, different by-products are generated, including leaves that are removed to increase the fruit’s solar exposure. The aim of this work was to extract bioactive compounds from kiwiberry leaf by employing microwave-assisted extraction (MAE). Compatible food solvents (water and ethanol) were employed. The alcoholic extract contained the highest phenolic and flavonoid contents (629.48 mg of gallic acid equivalents (GAE) per gram of plant material on dry weight (dw) (GAE/g dw) and 136.81 mg of catechin equivalents per gram of plant material on dw (CAE/g dw), respectively). Oppositely, the hydroalcoholic extract achieved the highest antioxidant activity and scavenging activity against reactive oxygen and nitrogen species (IC50 = 29.10 μg/mL for O2•−, IC50 = 1.87 μg/mL for HOCl and IC50 = 1.18 μg/mL for •NO). The phenolic profile showed the presence of caffeoylquinic acids, proanthocyanidin, and quercetin in all samples. However, caffeoylquinic acids and quercetin were detected in higher amounts in the alcoholic extract, while proanthocyanidins were prevalent in the hydroalcoholic extract. No adverse effects were observed on Caco-2 viability, while the highest concentration (1000 µg/mL) of hydroalcoholic and alcoholic extracts conducted to a decrease of HT29-MTX viability. These results highlight the MAE potentialities to extract bioactive compounds from kiwiberry leaf.
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Affiliation(s)
- Ana Margarida Silva
- REQUIMTE/LAQV-Polytechnic of Porto, School of Engineering, Rua Dr. António Bernardino de Almeida, 431, 4249-015 Porto, Portugal; (A.M.S.); (D.P.); (M.d.l.L.C.-G.); (C.D.-M.)
| | - Diana Pinto
- REQUIMTE/LAQV-Polytechnic of Porto, School of Engineering, Rua Dr. António Bernardino de Almeida, 431, 4249-015 Porto, Portugal; (A.M.S.); (D.P.); (M.d.l.L.C.-G.); (C.D.-M.)
| | - Iva Fernandes
- REQUIMTE/LAQV, Department of Chemistry and Biochemistry, Faculty of Sciences, University of Porto, Rua do Campo Alegre, s/n, 4169-007 Porto, Portugal; (I.F.); (V.d.F.)
| | - Victor de Freitas
- REQUIMTE/LAQV, Department of Chemistry and Biochemistry, Faculty of Sciences, University of Porto, Rua do Campo Alegre, s/n, 4169-007 Porto, Portugal; (I.F.); (V.d.F.)
| | - María de la Luz Cádiz-Gurrea
- REQUIMTE/LAQV-Polytechnic of Porto, School of Engineering, Rua Dr. António Bernardino de Almeida, 431, 4249-015 Porto, Portugal; (A.M.S.); (D.P.); (M.d.l.L.C.-G.); (C.D.-M.)
| | - Paulo Costa
- REQUIMTE/UCIBIO, MedTech-Laboratory of Pharmaceutical Technology, Department of Drug Sciences, Faculty of Pharmacy, University of Porto, Rua de Jorge Viterbo Ferreira, 228, 4050-313 Porto, Portugal;
| | - Cristina Delerue-Matos
- REQUIMTE/LAQV-Polytechnic of Porto, School of Engineering, Rua Dr. António Bernardino de Almeida, 431, 4249-015 Porto, Portugal; (A.M.S.); (D.P.); (M.d.l.L.C.-G.); (C.D.-M.)
| | - Francisca Rodrigues
- REQUIMTE/LAQV-Polytechnic of Porto, School of Engineering, Rua Dr. António Bernardino de Almeida, 431, 4249-015 Porto, Portugal; (A.M.S.); (D.P.); (M.d.l.L.C.-G.); (C.D.-M.)
- Correspondence: or ; Tel.: +351-22-83-40-500; Fax: +351-22-83-21-159
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Alara OR, Abdurahman NH, Ukaegbu CI. Extraction of phenolic compounds: A review. Curr Res Food Sci 2021; 4:200-214. [PMID: 33899007 PMCID: PMC8058613 DOI: 10.1016/j.crfs.2021.03.011] [Citation(s) in RCA: 224] [Impact Index Per Article: 74.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2020] [Revised: 02/23/2021] [Accepted: 03/26/2021] [Indexed: 01/09/2023] Open
Abstract
Phenolic compounds are parts of secondary metabolites mostly found in plant species with enormous structural diversities. They can exist as glycosides or aglycones; matrix or free-bound compounds; and comprising mostly polymerized or monomer structures. Additionally, these compounds are not universally dispensed within plants with varied stability. This has contributed to challenging extraction processes; implying that employing a single step or inappropriate extraction technique might change the recovery of phenolic components from the plant samples. Hence, it is important to select an appropriate extraction method so as to recover the targeted phenolic compounds. This is will helps to recover substantial yields from the sample matrix. Therefore, this review mainly focuses on the phenolic compounds and several methods of extraction that are used to obtaining them from plant materials. These extraction methods includes both conventional and unconventional techniques. Phenolic compounds from natural sources. Methods of extracting phenolic compounds. Selection of an appropriate extraction method to recover the targeted phenolic compounds from plant materials.
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Affiliation(s)
- Oluwaseun Ruth Alara
- Department of Chemical Engineering, College of Engineering, Universiti Malaysia Pahang, 26300, Gambang, Pahang, Malaysia
| | - Nour Hamid Abdurahman
- Department of Chemical Engineering, College of Engineering, Universiti Malaysia Pahang, 26300, Gambang, Pahang, Malaysia
| | - Chinonso Ishamel Ukaegbu
- Department of Biological Sciences, Faculty of Science, Kings University, P.M.B. 555, Odeomu, Osun State, Nigeria
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26
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Quality evaluation for Dipacus asperoides from Enshi areas and optimization extraction of saponins and organic acids and its application. ARAB J CHEM 2021. [DOI: 10.1016/j.arabjc.2021.103107] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
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27
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Valorization of unexploited artichoke leaves dust for obtaining of extracts rich in natural antioxidants. Sep Purif Technol 2021. [DOI: 10.1016/j.seppur.2020.117714] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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Eggplant Fruit (Solanum melongena L.) and Bio-Residues as a Source of Nutrients, Bioactive Compounds, and Food Colorants, Using Innovative Food Technologies. APPLIED SCIENCES-BASEL 2020. [DOI: 10.3390/app11010151] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
Consumers are very concerned with following a healthy diet, along with some precautions that may influence environmental impact. Solanum melongena L. is one of the most consumed vegetables due to its excellent nutritional value and antioxidant action. Associated with its high consumption, considerable amounts of agro-food wastes are produced. This work targets the valorization of this matrix, through the use of its bio-residues to study the obtention of coloring pigments, applying innovative technologies. Its nutritional value, chemical composition, and bioactive potential were evaluated, and the ultrasound-assisted extraction to obtain coloring pigments of high industrial interest was optimized. Considering the results, low contents of fat and carbohydrates and energy value were evident, as well as the presence of compounds of interest (free sugars, organic acids, unsaturated fatty acids, and phenolic acids). In addition, the antioxidant and antimicrobial potential was detected. Response surface methodology was performed to optimize the extraction of natural pigments, showing a concentration of 11.9 mg/g of anthocyanins/g of extract, applying optimal conditions of time, solvent, and solid/liquid ratio of 0.5 min, 68.2% (v/v) and 5 g/L, respectively. S. melongena proved to be a good source of bioactive compounds and natural pigments, which can generate great interest in the food industry.
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29
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Skenderidis P, Leontopoulos S, Petrotos K, Giavasis I. Optimization of Vacuum Microwave-Assisted Extraction of Pomegranate Fruits Peels by the Evaluation of Extracts' Phenolic Content and Antioxidant Activity. Foods 2020; 9:E1655. [PMID: 33198283 PMCID: PMC7696156 DOI: 10.3390/foods9111655] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2020] [Revised: 11/06/2020] [Accepted: 11/09/2020] [Indexed: 12/13/2022] Open
Abstract
The global interest in the use of plant by-product extracts as functional ingredients is continuously rising due to environmental, financial and health benefits. The latest advances in extraction technology have led to the production of aqueous extracts with high bioactive properties, which do not require the use of organic solvents. The purpose of this study was to optimize the conditions applied for the extraction of pomegranate peels (PP) via a "green" industrial type of vacuum microwave-assisted aqueous extraction (VMAAE), by assessing the potential bioactivity of the extracts (in terms of phenolic content and antioxidant activity), using a response surface methodology. The extraction conditions of temperature, microwave power, time and water/PP ratio were determined by the response surface methodology, in order to yield extracts with optimal total phenolics concentrations (TPC) and high antioxidant activity, based on the IC50 value of the scavenging of the 2,2-diphenyl-1-picrylhydrazyl (DPPH●) radical. The values of the optimum extraction parameters, such as extraction temperature (61.48 and 79.158 °C), time (10 and 12.17 min), microwave power (3797.24 and 3576.47 W) and ratio of water to raw material (39.92% and 38.2%), were estimated statistically for the two responses (TPC and IC50 values), respectively. Under these optimal extraction conditions, PP extracts with high TPC ((5.542 mg Gallic Acid Equivalent (GAE)/g fresh PP))/min and radical scavenging activity (100 mg/L (1.6 L/min)) could be obtained. Our results highlighted that the optimized industrial type of VMAAE could be a promising solution for the valorization of the PP by-products.
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Affiliation(s)
- Prodromos Skenderidis
- Department of Agrotechnology, Laboratory of Food and Biosystems Engineering, University of Thessaly, 41110 Larissa, Greece; (S.L.); (K.P.)
| | - Stefanos Leontopoulos
- Department of Agrotechnology, Laboratory of Food and Biosystems Engineering, University of Thessaly, 41110 Larissa, Greece; (S.L.); (K.P.)
| | - Konstantinos Petrotos
- Department of Agrotechnology, Laboratory of Food and Biosystems Engineering, University of Thessaly, 41110 Larissa, Greece; (S.L.); (K.P.)
| | - Ioannis Giavasis
- Department of Food Technology, Laboratory of Food Microbiology and Biotechnology, University of Thessaly, End of N. Temponera Street, 43100 Karditsa, Greece;
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Jimenez-Lopez C, Pereira AG, Lourenço-Lopes C, Garcia-Oliveira P, Cassani L, Fraga-Corral M, Prieto MA, Simal-Gandara J. Main bioactive phenolic compounds in marine algae and their mechanisms of action supporting potential health benefits. Food Chem 2020; 341:128262. [PMID: 33038800 DOI: 10.1016/j.foodchem.2020.128262] [Citation(s) in RCA: 57] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2020] [Revised: 09/11/2020] [Accepted: 09/27/2020] [Indexed: 12/17/2022]
Abstract
Given the growing tendency of consumers to choose products with natural ingredients, food industries have directed scientific research in this direction. In this regard, algae are an attractive option for the research, since they can synthesize a group of secondary metabolites, called phenolic compounds, associated with really promising properties and bioactivities. The objective of this work was to classify the major phenolic compounds, compare the effectiveness of the different extractive techniques used for their extraction, from traditional systems (like heat assisted extraction) to the most advance ones (such as ultrasound, microwave or supercritical fluid extraction); the available methods for identification and quantification; the stability of the enriched extract in phenolic compounds and the main bioactivities described for these secondary metabolites, to offer an overview of the situation to consider if it is possible and/or convenient an orientation of phenolic compounds from algae towards an industrial application.
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Affiliation(s)
- C Jimenez-Lopez
- Nutrition and Bromatology Group, Analytical and Food Chemistry Department, Faculty of Food Science and Technology, University of Vigo, Ourense Campus, E-32004 Ourense, Spain; Centro de Investigação de Montanha (CIMO), Instituto Politécnico de Bragança, Campus de Santa Apolonia, 5300-253 Bragança, Portugal
| | - A G Pereira
- Nutrition and Bromatology Group, Analytical and Food Chemistry Department, Faculty of Food Science and Technology, University of Vigo, Ourense Campus, E-32004 Ourense, Spain; Centro de Investigação de Montanha (CIMO), Instituto Politécnico de Bragança, Campus de Santa Apolonia, 5300-253 Bragança, Portugal
| | - C Lourenço-Lopes
- Nutrition and Bromatology Group, Analytical and Food Chemistry Department, Faculty of Food Science and Technology, University of Vigo, Ourense Campus, E-32004 Ourense, Spain
| | - P Garcia-Oliveira
- Nutrition and Bromatology Group, Analytical and Food Chemistry Department, Faculty of Food Science and Technology, University of Vigo, Ourense Campus, E-32004 Ourense, Spain; Centro de Investigação de Montanha (CIMO), Instituto Politécnico de Bragança, Campus de Santa Apolonia, 5300-253 Bragança, Portugal
| | - L Cassani
- Research Group of Food Engineering, Faculty of Engineering, National University of Mar del Plata, RA7600 Mar del Plata, Argentina
| | - M Fraga-Corral
- Nutrition and Bromatology Group, Analytical and Food Chemistry Department, Faculty of Food Science and Technology, University of Vigo, Ourense Campus, E-32004 Ourense, Spain; Centro de Investigação de Montanha (CIMO), Instituto Politécnico de Bragança, Campus de Santa Apolonia, 5300-253 Bragança, Portugal
| | - M A Prieto
- Nutrition and Bromatology Group, Analytical and Food Chemistry Department, Faculty of Food Science and Technology, University of Vigo, Ourense Campus, E-32004 Ourense, Spain.
| | - J Simal-Gandara
- Nutrition and Bromatology Group, Analytical and Food Chemistry Department, Faculty of Food Science and Technology, University of Vigo, Ourense Campus, E-32004 Ourense, Spain.
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Chaves JO, de Souza MC, da Silva LC, Lachos-Perez D, Torres-Mayanga PC, Machado APDF, Forster-Carneiro T, Vázquez-Espinosa M, González-de-Peredo AV, Barbero GF, Rostagno MA. Extraction of Flavonoids From Natural Sources Using Modern Techniques. Front Chem 2020; 8:507887. [PMID: 33102442 PMCID: PMC7546908 DOI: 10.3389/fchem.2020.507887] [Citation(s) in RCA: 155] [Impact Index Per Article: 38.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2019] [Accepted: 08/18/2020] [Indexed: 12/13/2022] Open
Abstract
Flavonoids are one of the main groups of polyphenols found in natural products. Traditional flavonoid extraction techniques are being replaced by advanced techniques to reduce energy and solvent consumption, increase efficiency and selectivity, to meet increased market demand and environmental regulations. Advanced technologies, such as microwaves, ultrasound, pressurized liquids, supercritical fluids, and electric fields, are alternatives currently being used. These modern techniques are generally faster, more environmentally friendly, and with higher automation levels compared to conventional extraction techniques. This review will discuss the different methods available for flavonoid extraction from natural sources and the main parameters involved (temperature, solvent, sample quantity, extraction time, among others). Recent trends and their industrial importance are also discussed in detail, providing insight into their potential. Thus, this paper seeks to review the innovations of compound extraction techniques, presenting in each of them their advantages and disadvantages, trying to offer a broader scope in the understanding of flavonoid extraction from different plant matrices.
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Affiliation(s)
- Jaísa Oliveira Chaves
- Multidisciplinary Laboratory in Food and Health, School of Applied Sciences, University of Campinas, Limeira, Brazil
| | - Mariana Corrêa de Souza
- Multidisciplinary Laboratory in Food and Health, School of Applied Sciences, University of Campinas, Limeira, Brazil
| | - Laise Capelasso da Silva
- Multidisciplinary Laboratory in Food and Health, School of Applied Sciences, University of Campinas, Limeira, Brazil
| | - Daniel Lachos-Perez
- Laboratory of Optimization, Design and Advanced Control - Bioenergy Research Program, School of Chemical Engineering, University of Campinas, Campinas, Brazil
| | - Paulo César Torres-Mayanga
- School of Food Engineering, University of Campinas, Campinas, Brazil
- Facultad de Ingeniería, Universidad Nacional Micaela Bastidas de Apurímac, Abancay, Peru
| | | | | | | | | | | | - Mauricio Ariel Rostagno
- Multidisciplinary Laboratory in Food and Health, School of Applied Sciences, University of Campinas, Limeira, Brazil
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Six flavonoids inhibit the antigenicity of β-lactoglobulin by noncovalent interactions: A spectroscopic and molecular docking study. Food Chem 2020; 339:128106. [PMID: 33152886 DOI: 10.1016/j.foodchem.2020.128106] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2020] [Revised: 09/03/2020] [Accepted: 09/12/2020] [Indexed: 11/23/2022]
Abstract
It is practical to inhibit the allergenicity of β-lactoglobulin (β-LG) using natural products acting via noncovalent interactions; however, the mechanism of the effect has not been investigated in detail. Herein, the comprehensive noncovalent mechanism of inhibition of the antigenicity of β-LG by six flavonoids (kaempferol, myricetin, phloretin, epigallocatechin-3-gallate (EGCG), naringenin, and quercetin) was investigated by spectroscopic and molecular docking methods. Our results indicate that six flavonoids reduced the antigenicity of β-LG in the following order: EGCG > phloretin > naringenin > myricetin > kaempferol > quercetin, with antigenic inhibition rates of 72.6%, 68.4%, 59.7%, 52.3%, 51.4% and 40.8%, respectively. Six flavonoids induced distinct conformational changes in β-LG, which were closely associated with a decline in antigenicity of β-LG. The flavonoids bound to specific antigen epitopes in the β-sheet and β-turn of β-LG to induce a decrease in the antigenicity of the protein.
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Environmentally Friendly Methods for Flavonoid Extraction from Plant Material: Impact of Their Operating Conditions on Yield and Antioxidant Properties. ScientificWorldJournal 2020; 2020:6792069. [PMID: 32908461 PMCID: PMC7474796 DOI: 10.1155/2020/6792069] [Citation(s) in RCA: 55] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2020] [Revised: 06/20/2020] [Accepted: 07/27/2020] [Indexed: 01/27/2023] Open
Abstract
The flavonoids are compounds synthesized by plants, and they have properties such as antioxidant, anticancer, anti-inflammatory, and antibacterial, among others. One of the most important bioactive properties of flavonoids is their antioxidant effect. Synthetic antioxidants have side toxic effects whilst natural antioxidants, such as flavonoids from natural sources, have relatively low toxicity. Therefore, it is important to incorporate flavonoids derived from natural sources in several products such as foods, cosmetics, and drugs. For this reason, there is currently a need to extract flavonoids from plant resources. In this review are described the most important parameters involved in the extraction of flavonoids by unconventional methods such as ultrasound, pressurized liquid extraction, mechanochemical, high hydrostatic pressure, supercritical fluid, negative pressure cavitation, intensification of vaporization by decompression to the vacuum, microwave, infrared, pulsed electric field, high-voltage electrical discharges, and enzyme-assisted extraction. There are no unified operation conditions to achieve high yields and purity. Notwithstanding, progress has been achieved in the development of more advanced and environmentally friendly methods of extraction. Although in literature are found important advances, a complete understanding of the extraction process in each of the unconventional techniques is needed to determine the thermodynamic and kinetic mechanisms that govern each of the techniques.
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Weremfo A, Adulley F, Adarkwah-Yiadom M. Simultaneous Optimization of Microwave-Assisted Extraction of Phenolic Compounds and Antioxidant Activity of Avocado ( Persea americana Mill.) Seeds Using Response Surface Methodology. JOURNAL OF ANALYTICAL METHODS IN CHEMISTRY 2020; 2020:7541927. [PMID: 32879748 PMCID: PMC7448120 DOI: 10.1155/2020/7541927] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/12/2020] [Revised: 06/16/2020] [Accepted: 07/30/2020] [Indexed: 05/10/2023]
Abstract
This study was designed to optimize three microwave-assisted extraction (MAE) parameters (ethanol concentration, microwave power, and extraction time) of total phenolics, total flavonoids, and antioxidant activity of avocado seeds using response surface methodology (RSM). The predicted quadratic models were highly significant (p < 0.001) for the responses studied. The extraction of total phenolic content (TPC), total flavonoid content (TFC), and antioxidant activity was significantly (p < 0.05) influenced by both microwave power and extraction time. The optimal conditions for simultaneous extraction of phenolic compounds and antioxidant activity were ethanol concentration of 58.3% (v/v), microwave power of 400 W, and extraction time of 4.8 min. Under these conditions, the experimental results agreed with the predicted values. MAE revealed clear advantages over the conventional solvent extraction (CSE) in terms of high extraction efficiency and antioxidant activity within the shortest extraction time. Furthermore, high-performance liquid chromatography (HPLC) analysis of optimized extract revealed the presence of 10 phenolic compounds, with rutin, catechin, and syringic acid being the dominant compounds. Consequently, this optimized MAE method has demonstrated a potential application for efficient extraction of polyphenolic antioxidants from avocado seeds in the nutraceutical industries.
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Affiliation(s)
- Alexander Weremfo
- Department of Biochemistry, School of Biological Sciences, University of Cape Coast, Cape Coast, Ghana
| | - Felix Adulley
- Department of Biochemistry, School of Biological Sciences, University of Cape Coast, Cape Coast, Ghana
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Ghada B, Pereira E, Pinela J, Prieto MA, Pereira C, Calhelha RC, Stojković D, Sokóvić M, Zaghdoudi K, Barros L, Ferreira ICFR. Recovery of Anthocyanins from Passion Fruit Epicarp for Food Colorants: Extraction Process Optimization and Evaluation of Bioactive Properties. Molecules 2020; 25:molecules25143203. [PMID: 32674320 PMCID: PMC7397062 DOI: 10.3390/molecules25143203] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2020] [Revised: 06/29/2020] [Accepted: 07/12/2020] [Indexed: 11/16/2022] Open
Abstract
The potential of passion fruit (Passiflora edulis Sims) epicarp to produce anthocyanin-based colorants with bioactive properties was evaluated. First, a five-level three-factor factorial design coupled with response surface methodology was implemented to optimize the extraction of anthocyanins from dark purple epicarps. The extraction yield and cyanidin-3-O-glucoside content were used as response criteria. The constructed models were fitted to the experimental data and used to calculate the optimal processing conditions (t = 38 min, T = 20 °C, S = 0% ethanol/water (v/v) acidified with citric acid to pH 3, and RS/L = 50 g/L) that lead to maximum responses (3.4 mg/g dried epicarp and 9 mg/g extract). Then, the antioxidant, antimicrobial, and cytotoxic activities of anthocyanin extracts obtained using the optimized method and a conventional extraction method were evaluated in vitro. The extract obtained by the optimized method revealed a higher bioactivity, in agreement with the higher cyanidin-3-O-glucoside content. This study highlighted the coloring and bioactive potential of a bio-based ingredient recycled from a bio-waste, which promotes a sustainable bioeconomy in the agri-food sector.
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Affiliation(s)
- Bejaoui Ghada
- Centro de Investigação de Montanha (CIMO), Instituto Politécnico de Bragança, Campus de Santa Apolónia, 5300-253 Bragança, Portugal; (B.G.); (J.P.); (C.P.); (R.C.C.); (I.C.F.R.F.)
- Department of Chemical Engineering, Tunisia Private University (ULT), 32 Bis Av. Kheireddine Pacha, Tunis 1002, Tunisia;
| | - Eliana Pereira
- Centro de Investigação de Montanha (CIMO), Instituto Politécnico de Bragança, Campus de Santa Apolónia, 5300-253 Bragança, Portugal; (B.G.); (J.P.); (C.P.); (R.C.C.); (I.C.F.R.F.)
- Correspondence: (E.P.); (L.B.)
| | - José Pinela
- Centro de Investigação de Montanha (CIMO), Instituto Politécnico de Bragança, Campus de Santa Apolónia, 5300-253 Bragança, Portugal; (B.G.); (J.P.); (C.P.); (R.C.C.); (I.C.F.R.F.)
| | - Miguel A. Prieto
- Nutrition and Bromatology Group, Faculty of Food Science and Technology, University of Vigo, Ourense Campus, E32004 Ourense, Spain;
| | - Carla Pereira
- Centro de Investigação de Montanha (CIMO), Instituto Politécnico de Bragança, Campus de Santa Apolónia, 5300-253 Bragança, Portugal; (B.G.); (J.P.); (C.P.); (R.C.C.); (I.C.F.R.F.)
| | - Ricardo C. Calhelha
- Centro de Investigação de Montanha (CIMO), Instituto Politécnico de Bragança, Campus de Santa Apolónia, 5300-253 Bragança, Portugal; (B.G.); (J.P.); (C.P.); (R.C.C.); (I.C.F.R.F.)
| | - Dejan Stojković
- Institute for Biological Research “Siniša Stanković”—National Institute of Republic of Serbia, University of Belgrade, Bulevar Despota Stefana 142, 11000 Belgrade, Serbia; (D.S.); (M.S.)
| | - Marina Sokóvić
- Institute for Biological Research “Siniša Stanković”—National Institute of Republic of Serbia, University of Belgrade, Bulevar Despota Stefana 142, 11000 Belgrade, Serbia; (D.S.); (M.S.)
| | - Khalil Zaghdoudi
- Department of Chemical Engineering, Tunisia Private University (ULT), 32 Bis Av. Kheireddine Pacha, Tunis 1002, Tunisia;
| | - Lillian Barros
- Centro de Investigação de Montanha (CIMO), Instituto Politécnico de Bragança, Campus de Santa Apolónia, 5300-253 Bragança, Portugal; (B.G.); (J.P.); (C.P.); (R.C.C.); (I.C.F.R.F.)
- Correspondence: (E.P.); (L.B.)
| | - Isabel C. F. R. Ferreira
- Centro de Investigação de Montanha (CIMO), Instituto Politécnico de Bragança, Campus de Santa Apolónia, 5300-253 Bragança, Portugal; (B.G.); (J.P.); (C.P.); (R.C.C.); (I.C.F.R.F.)
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36
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Recovery of Phytochemicals via Electromagnetic Irradiation (Microwave-Assisted-Extraction): Betalain and Phenolic Compounds in Perspective. Foods 2020; 9:foods9070918. [PMID: 32664694 PMCID: PMC7404971 DOI: 10.3390/foods9070918] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2020] [Revised: 06/30/2020] [Accepted: 07/07/2020] [Indexed: 11/16/2022] Open
Abstract
Food colorants processed via agro-industrial wastes are in demand as food waste management becomes vital not only for its health benefits but also for cost reduction through waste valorization. Huge efforts have been made to recover valuable components from food wastes and applied in various fields to prove their versatility rather than for feed ruminant usage only. Betalains and phenolics, antioxidant-rich compounds responsible for host color and so commonly used as natural colorants in food and cosmetic industries, are copiously present in several kinds of fruits and vegetables as well as their wastes. Technological innovation has brought extensive convenient ways of bioactive compounds extraction with many advantages like less use of solvents and energy in a short period of processing time in comparison with the classical solid–liquid extraction methods. Emerging technologies, particularly microwave irradiation, have been amenable to electromagnetic technology for decades. Practically, they have been deployed for functional and supplement food production. In this review, the feasibility of dielectric heating (microwave irradiation) in the extraction of betalain and phenolic compounds mostly from fruit and vegetable wastes was discussed.
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37
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Microwave-Assisted Improved Extraction and Purification of Anticancer Nimbolide from Azadirachta indica (Neem) Leaves. Molecules 2020; 25:molecules25122913. [PMID: 32599926 PMCID: PMC7356096 DOI: 10.3390/molecules25122913] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2020] [Revised: 06/21/2020] [Accepted: 06/22/2020] [Indexed: 02/01/2023] Open
Abstract
Nimbolide, a limonoid present in leaves of the neem tree (Azadirachta indica), is an anticancer compound against a panel of human cancer cell lines. The rapid process of extraction and purification of the nimbolide from the leaves of neem tree through microwave-assisted extraction (MAE) coupled with a chromatographic technique was accomplished. The crude with a maximum content of nimbolide could be recovered from neem leaves through MAE. By using three-factors, three-level Box–Behnken design of response surface methodology (RSM), the optimal conditions for nimbolide extraction (R2 = 0.9019) were solid/liquid ratio 1:16 g/mL, microwave power 280 W, and extraction time 22 min. The enriched extract was further purified by a preparative thin-layer chromatography (PTLC), where nimbolide was obtained as 0.0336 g (0.67% yield, purity over 98%) with ethyl acetate/hexane = 4:6 in 3.0 h. Structural elucidation was performed through spectroscopic techniques, including FT-IR, 1H, and 13C-NMR. This method was simple and had a good potential for the purification of bioactive compounds from a natural product.
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38
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Garcia-Oliveira P, Fraga-Corral M, Pereira AG, Lourenço-Lopes C, Jimenez-Lopez C, Prieto MA, Simal-Gandara J. Scientific basis for the industrialization of traditionally used plants of the Rosaceae family. Food Chem 2020; 330:127197. [PMID: 32540521 DOI: 10.1016/j.foodchem.2020.127197] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2020] [Revised: 03/16/2020] [Accepted: 05/29/2020] [Indexed: 12/29/2022]
Abstract
Plants have been traditionally used for the treatment of different types of illness, due to biomolecules with recognised benefits. Rosaceae family is used in traditional Galician medicine. The following plants Agrimonia eupatoria, Crataegus monogyna, Filipendula ulmaria, Geum urbanum, Potentilla erecta and Rosa canina are usually found in treatments. The aim of this study is to perform an ethnobotanical review about the bioactive compounds of these plants and their different bioactivities, both studied in vitro and in vivo. The nature of the bioactive compounds is varied, highlighting the presence of different phenolic compounds, such as phenolic acids, flavonoids or tannins. Understanding the beneficial effects of the administration of the whole plant or target tissues from A. eupatoria, C. monogyna, F. ulmaria, G. urbanum, P. erecta and R. canina as well as those from their individual compounds could lead to the development of new drugs based on the use of natural ingredients.
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Affiliation(s)
- P Garcia-Oliveira
- Nutrition and Bromatology Group, Analytical and Food Chemistry Department, Faculty of Food Science and Technology, University of Vigo, Ourense Campus, E-32004 Ourense, Spain
| | - M Fraga-Corral
- Nutrition and Bromatology Group, Analytical and Food Chemistry Department, Faculty of Food Science and Technology, University of Vigo, Ourense Campus, E-32004 Ourense, Spain; Centro de Investigação de Montanha (CIMO), Instituto Politécnico de Bragança, Campus de Santa Apolonia, 5300-253 Bragança, Portugal
| | - A G Pereira
- Nutrition and Bromatology Group, Analytical and Food Chemistry Department, Faculty of Food Science and Technology, University of Vigo, Ourense Campus, E-32004 Ourense, Spain; Centro de Investigação de Montanha (CIMO), Instituto Politécnico de Bragança, Campus de Santa Apolonia, 5300-253 Bragança, Portugal
| | - C Lourenço-Lopes
- Nutrition and Bromatology Group, Analytical and Food Chemistry Department, Faculty of Food Science and Technology, University of Vigo, Ourense Campus, E-32004 Ourense, Spain
| | - C Jimenez-Lopez
- Nutrition and Bromatology Group, Analytical and Food Chemistry Department, Faculty of Food Science and Technology, University of Vigo, Ourense Campus, E-32004 Ourense, Spain; Centro de Investigação de Montanha (CIMO), Instituto Politécnico de Bragança, Campus de Santa Apolonia, 5300-253 Bragança, Portugal
| | - M A Prieto
- Nutrition and Bromatology Group, Analytical and Food Chemistry Department, Faculty of Food Science and Technology, University of Vigo, Ourense Campus, E-32004 Ourense, Spain.
| | - J Simal-Gandara
- Nutrition and Bromatology Group, Analytical and Food Chemistry Department, Faculty of Food Science and Technology, University of Vigo, Ourense Campus, E-32004 Ourense, Spain.
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Jiang Z, Li T, Ma L, Chen W, Yu H, Abdul Q, Hou J, Tian B. Comparison of interaction between three similar chalconoids and α-lactalbumin: Impact on structure and functionality of α-lactalbumin. Food Res Int 2020; 131:109006. [DOI: 10.1016/j.foodres.2020.109006] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2019] [Revised: 01/08/2020] [Accepted: 01/12/2020] [Indexed: 12/31/2022]
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40
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Chen H, Wang S, Zhou A, Miao J, Liu J, Benjakul S. A novel antioxidant peptide purified from defatted round scad (Decapterus maruadsi) protein hydrolysate extends lifespan in Caenorhabditis elegans. J Funct Foods 2020. [DOI: 10.1016/j.jff.2020.103907] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023] Open
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41
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Albuquerque BR, Oliveira MBPP, Barros L, Ferreira ICFR. Could fruits be a reliable source of food colorants? Pros and cons of these natural additives. Crit Rev Food Sci Nutr 2020; 61:805-835. [PMID: 32267162 DOI: 10.1080/10408398.2020.1746904] [Citation(s) in RCA: 36] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Color additives are important for the food industry to improve sensory quality lost during food process and to expand the variety of products. In general, artificial colorants have lower cost and better stability than the natural ones. Nevertheless, studies have reported their association with some health disorders. Furthermore, consumers have given greater attention to food products with health beneficial effects, which has provided a new perspective for the use of natural colorants. In this context, fruits are an excellent alternative source of natural compounds, that allow the obtainment of a wide range of colorant molecules, such as anthocyanins, betalains, carotenoids, and chlorophylls. Furthermore, in addition to their coloring ability, they comprise different bioactive properties. However, the extraction and application of natural colorants from fruits is still a challenge, since these compounds show some stability problems, in addition to issues related to the sustainability of raw-materials providing. To overcome these limitations, several studies have reported optimized extraction and stabilization procedures. In this review, the major pigments found in fruits and their extraction and stabilization techniques for uses as food additives will be looked over.
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Affiliation(s)
- Bianca R Albuquerque
- Centro de Investigação de Montanha (CIMO), Instituto Politécnico de Bragança, Bragança, Portugal
| | - M Beatriz P P Oliveira
- REQUIMTE - Science Chemical Department, Faculty of Pharmacy, University of Porto, Porto, Portugal
| | - Lillian Barros
- Centro de Investigação de Montanha (CIMO), Instituto Politécnico de Bragança, Bragança, Portugal
| | - Isabel C F R Ferreira
- Centro de Investigação de Montanha (CIMO), Instituto Politécnico de Bragança, Bragança, Portugal
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42
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Taofiq O, Barreiro MF, Ferreira ICFR. The Role of Bioactive Compounds and other Metabolites from Mushrooms against Skin Disorders- A Systematic Review Assessing their Cosmeceutical and Nutricosmetic Outcomes. Curr Med Chem 2020; 27:6926-6965. [PMID: 32238131 DOI: 10.2174/0929867327666200402100157] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2019] [Revised: 11/19/2019] [Accepted: 12/15/2019] [Indexed: 01/03/2023]
Abstract
Bioactive compounds derived from mushrooms have been shown to present promising potential as cosmeceutical or nutricosmetic ingredients. Scientific data reviewed herein showed that extracts prepared from medicinal and edible mushrooms and their individual metabolites presented antiinflammatory, antioxidant, photoprotective, antimicrobial, anti-tyrosinase, anti-elastase, and anticollagenase activities. These metabolites can be utilised as ingredients to suppress the severity of Inflammatory Skin Diseases, offer photoprotection to the skin, and correct Hyperpigmentation. However, studies regarding the molecular mechanism behind the mentioned bioactivities are still lacking. Challenges associated with the use of mushroom extracts and their associated metabolites as cosmeceutical and nutricosmetic ingredients include several steps from the fruiting bodies to the final product: extraction optimization, estimation of the efficacy and safety claims, the use of micro and nanocarriers to allow for controlled release and the pros and cons associated with the use of extracts vs individual compounds. This systematic review highlights that mushrooms contain diverse biomolecules that can be sustainably used in the development of nutricosmetic and cosmeceutical formulations. Reports regarding stability, compatibility, and safety assessment, but also toxicological studies are still needed to be considered. Furthermore, some of the constraints and limitations hindering the development of this type of ingredients still require long-term studies to achieve major breakthroughs.
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Affiliation(s)
- Oludemi Taofiq
- Centro de Investigacao de Montanha (CIMO), Instituto Politecnico de Braganca, Campus de Santa Apolonia, 5300-253 Braganca, Portugal
| | - Maria Filomena Barreiro
- Centro de Investigacao de Montanha (CIMO), Instituto Politecnico de Braganca, Campus de Santa Apolonia, 5300-253 Braganca, Portugal
| | - Isabel C F R Ferreira
- Centro de Investigacao de Montanha (CIMO), Instituto Politecnico de Braganca, Campus de Santa Apolonia, 5300-253 Braganca, Portugal
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43
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Functional deep eutectic solvent-based chaotic extraction of phycobiliprotein using microwave-assisted liquid-liquid micro-extraction from Spirulina (Arthrospira platensis) and its biological activity determination. ALGAL RES 2019. [DOI: 10.1016/j.algal.2019.101709] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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44
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Szabo K, Dulf FV, Diaconeasa Z, Vodnar DC. Antimicrobial and antioxidant properties of tomato processing byproducts and their correlation with the biochemical composition. Lebensm Wiss Technol 2019. [DOI: 10.1016/j.lwt.2019.108558] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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45
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A Mechanistic Model of Mass Transfer in the Extraction of Bioactive Compounds from Intact Sorghum Pericarp. Processes (Basel) 2019. [DOI: 10.3390/pr7110837] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023] Open
Abstract
The extraction of phytochemical compounds from intact red sorghum grains was developed as an alternative process for producing bioactive material in the pharmaceutical industry. A mechanistic model is needed to better understand the process and enable predictive simulations for designing commercial-scale extraction systems. This paper presents a mathematical model for predicting phytochemical concentrations in the solvent and inside the pericarp of the grain at different positions during the extraction. The model is based on the mass transfer mechanism from inside the pericarp to its solid surface by diffusion, and then from the surface to a solvent during the extraction of bioactive compounds. It was numerically solved while using finite-difference approximation. The parameters considered were effective diffusivity inside the pericarp (Dep), mass transfer coefficient from the pericarp surface to the solvent (kc), and distribution coefficient (H). The model simulates the extraction performance, including the yield and bioactive compounds’ concentrations in the extract and inside the pericarp at various positions and times. A sensitivity analysis of the changes in each involved parameter provided sufficient information for increasing the performance of the model. A validation test that compared the results of the simulation with those of established analytical solutions showed that the model has high accuracy. Hence, the model can be applied in quantitative evaluations to improve productivity in the pharmaceutical industry.
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46
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Taofiq O, Corrêa RC, Barros L, Prieto M, Bracht A, Peralta RM, González-Paramás AM, Barreiro MF, Ferreira IC. A comparative study between conventional and non-conventional extraction techniques for the recovery of ergosterol from Agaricus blazei Murrill. Food Res Int 2019; 125:108541. [DOI: 10.1016/j.foodres.2019.108541] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2018] [Revised: 06/20/2019] [Accepted: 07/06/2019] [Indexed: 12/01/2022]
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Hu YH, Peng LQ, Wang QY, Yang J, Dong X, Wang SL, Cao J, Liu FM. Ecofriendly microwave-assisted reaction and extraction of bioactive compounds from hawthorn leaf. PHYTOCHEMICAL ANALYSIS : PCA 2019; 30:710-719. [PMID: 31264752 DOI: 10.1002/pca.2849] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/27/2018] [Revised: 04/19/2019] [Accepted: 04/30/2019] [Indexed: 06/09/2023]
Abstract
INTRODUCTION The main active components in hawthorn leaves possess various biological activities such as anti-inflammatory, antioxidant, and hypolipidemic effects. Therefore, it is necessary to develop an effective and reliable extraction method to extract these active compounds from hawthorn leaves. OBJECTIVE To establish a simple, rapid, and sensitive method for extraction and determination of polyphenolic compounds from hawthorn leaves. METHODS In this study, a microwave-assisted reaction and extraction (MARE) combined with ultra-high-performance liquid chromatography with ultraviolet detector method was established to extract and determine the polyphenolic compounds in hawthorn leaves. The solid reagent aqueous solutions were applied as extraction solvents, preventing the use of organic solvents. The target analytes were identified by quadrupole time-of-flight tandem mass spectrometry. Several experimental parameters that can significantly affect the extraction efficiency were evaluated and optimised. RESULTS The optimal conditions were as follows: 0.1 g of sodium carbonate was used as solid reagent, the amount of sodium borate was set at 0.01 g, extraction time was 10 min, extraction temperature was set at 50°C, pH value was adjusted to 7. The validation experiments demonstrated that the method had high sensitivity with the limits of detection in the range 26.5-37.7 ng/mL. The average recoveries ranged from 80.22% to 93.27%. CONCLUSION In this work, the proposed MARE method was successfully applied to extract and determine polyphenolic compounds in hawthorn leaf samples. Compared with other reported methods, the present method was faster, greener, and more sensitive.
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Affiliation(s)
- Yu-Han Hu
- College of Material Chemistry and Chemical Engineering, Hangzhou Normal University, Hangzhou, P. R. China
| | - Li-Qing Peng
- Medical College, Hangzhou Normal University, Hangzhou, P. R. China
| | - Qiu-Yan Wang
- College of Material Chemistry and Chemical Engineering, Hangzhou Normal University, Hangzhou, P. R. China
| | - Juan Yang
- College of Material Chemistry and Chemical Engineering, Hangzhou Normal University, Hangzhou, P. R. China
| | - Xin Dong
- College of Material Chemistry and Chemical Engineering, Hangzhou Normal University, Hangzhou, P. R. China
| | - Shu-Ling Wang
- Medical College, Hangzhou Normal University, Hangzhou, P. R. China
| | - Jun Cao
- College of Material Chemistry and Chemical Engineering, Hangzhou Normal University, Hangzhou, P. R. China
| | - Fang-Ming Liu
- College of Material Chemistry and Chemical Engineering, Hangzhou Normal University, Hangzhou, P. R. China
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Bichot A, Lerosty M, Geirnaert L, Méchin V, Carrère H, Bernet N, Delgenès JP, García-Bernet D. Soft Microwave Pretreatment to Extract P-Hydroxycinnamic Acids from Grass Stalks. Molecules 2019; 24:E3885. [PMID: 31661930 PMCID: PMC6864740 DOI: 10.3390/molecules24213885] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2019] [Revised: 10/22/2019] [Accepted: 10/25/2019] [Indexed: 12/02/2022] Open
Abstract
The aim of this article is to provide an analysis of microwave effects on ferulic and coumaric acids (FA and CA, respectively) extraction from grass biomass (corn stalks and miscanthus). Microwave pretreatment using various solvents was first compared to conventional heating on corn stalks. Then, microwave operational conditions were extended in terms of incident power and treatment duration. Optimal conditions were chosen to increase p-hydroxycinnamic acids release. Finally, these optimal conditions determined on corn stalks were tested on miscanthus stalks to underlie the substrate incidence on p-hydroxycinnamic acids release yields. The optimal conditions-a treatment duration of 405 s under 1000 W-allowed extracting 1.38% FA and 1.97% CA in corn stalks and 0.58% FA and 3.89% CA in miscanthus stalks. The different bioaccessibility of these two molecules can explain the higher or lower yields between corn and miscanthus stalks.
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Affiliation(s)
- Aurélie Bichot
- Univ Montpellier, INRA, 102 Avenue des Etangs, CEDEX, 11100 Narbonne, France.
| | - Mickaël Lerosty
- Univ Montpellier, INRA, 102 Avenue des Etangs, CEDEX, 11100 Narbonne, France.
| | - Laureline Geirnaert
- Univ Montpellier, INRA, 102 Avenue des Etangs, CEDEX, 11100 Narbonne, France.
| | - Valérie Méchin
- INRA Institut Jean-Pierre Bourgin, CEDEX, 78026 Versailles, France.
| | - Hélène Carrère
- Univ Montpellier, INRA, 102 Avenue des Etangs, CEDEX, 11100 Narbonne, France.
| | - Nicolas Bernet
- Univ Montpellier, INRA, 102 Avenue des Etangs, CEDEX, 11100 Narbonne, France.
| | | | - Diana García-Bernet
- Univ Montpellier, INRA, 102 Avenue des Etangs, CEDEX, 11100 Narbonne, France.
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Optimizing and Comparing Ultrasound- and Microwave-Assisted Extraction Methods Applied to the Extraction of Antioxidant Capsinoids in Peppers. AGRONOMY-BASEL 2019. [DOI: 10.3390/agronomy9100633] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Capsinoids are very similar antioxidant compounds to capsaicinoids, but less irritating, non-pungent and more palatable, and can thus be used in greater concentrations for food applications. To date, three capsinoids (capsiate, dihydrocapsiate, and nordihydrocapsiate) have been isolated from the pepper fruits. Due to its substantial commercial importance, it would be convenient to determine which pepper varieties have a richer content. Ultrasound- (UAE) and microwave- (MAE) assisted extraction have been implemented and analyzed using multivariate statistical methods. Firstly, different solvents were tested individually. The three best solvents were used in a set mixture design, where 42% methanol and 58% ethyl acetate were determined as the optimum combination for UAE, and 100% methanol for MAE. Subsequently, a Box–Behnken experimental design with four variables for both UAE and MAE (time, temperature, pH and sample mass:solvent volume “ratio”) was performed. The sample mass:solvent volume was the most influential variable in UAE; while for MAE no variable was any more influential than the others. Finally, both optimized extraction methods were successfully applied to different varieties of peppers. Besides, to demonstrate the efficiency of both extraction methods, a recovery study was performed. The results prove the potential of both techniques as highly adequate methods for the extraction of capsinoids from peppers.
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Zhang Y, Tang H, Zheng Y, Li J, Pan L. Optimization of ultrasound-assisted extraction of poly-phenols from Ajuga ciliata Bunge and evaluation of antioxidant activities in vitro. Heliyon 2019; 5:e02733. [PMID: 31720471 PMCID: PMC6838966 DOI: 10.1016/j.heliyon.2019.e02733] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2018] [Revised: 09/30/2019] [Accepted: 10/23/2019] [Indexed: 10/28/2022] Open
Abstract
Effective extraction of natural antioxidants from cheap plant sources is still a problem. In this paper, an excellent method of ultrasound-assisted extraction of phenolic compounds from Ajuga ciliata Bunge was studied. The effects of four factors including ethanol volume fraction, ultrasonic time, ultrasonic temperature and material liquid ratio were discussed. After single factor experiments had been investigated, a 4-factor, 3-level Box-Behnken design experiment was used to obtain the model optimum conditions, which are shown as follows: ethanol volume fraction of 41%, liquid-solid ratio of 35:1 mL/g, ultrasonic temperature of 60 °C and ultrasonic time of 50 min. Under these conditions, the experimental productivity is 3.552 mg/g. The spectra of Fourier infrared and energy dispersive X-ray suggest that phenolic compounds exist in the extracts. Besides, free radical scavenging potentials of superoxide anion, hydroxyl and DPPH were measured to evaluate their antioxidant properties. This study proves that the ultrasonic-assisted extraction technique can extract phenolic compounds with antioxidant capacity from Ajuga ciliata Bunge.
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Affiliation(s)
- Yanfei Zhang
- School of Information Engineering, Huangshan University, Tunxi, 245041, PR China
| | - Haitong Tang
- School of Chemistry & Chemical Engineering, Huangshan University, Tunxi, 245041, PR China
| | - Yuchuan Zheng
- School of Chemistry & Chemical Engineering, Huangshan University, Tunxi, 245041, PR China
| | - Jinzhu Li
- School of Chemistry & Chemical Engineering, Huangshan University, Tunxi, 245041, PR China
| | - Le Pan
- School of Chemistry & Chemical Engineering, Huangshan University, Tunxi, 245041, PR China
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