1
|
Costa RD, Domínguez-Perles R, Abraão A, Gomes V, Gouvinhas I, Barros AN. Exploring the Antioxidant Potential of Phenolic Compounds from Winery By-Products by Hydroethanolic Extraction. Molecules 2023; 28:6660. [PMID: 37764436 PMCID: PMC10535758 DOI: 10.3390/molecules28186660] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2023] [Revised: 08/11/2023] [Accepted: 09/14/2023] [Indexed: 09/29/2023] Open
Abstract
The residues generated in the wine industry (pomace, stems, seeds, wine lees, and grapevine shoots) are a potential source of bioactive compounds that can be used in other industries despite being sometimes underestimated. Different extraction methods using various solvents and extraction conditions are currently being investigated. Due to its natural occurrence in wines, safe behavior, and low toxicity when compared to other organic solvents, ethanol is used as an extracting agent. The aim of this study was to identify the winery by-product from the Região Demarcada do Douro and its corresponding extraction solvents that yields the most favorable results in (poly)phenols content and antioxidant capacity. To achieve this, five different ratios of ethanol: water, namely 0:100, 25:75, 50:50, 75:25, and 100:0 (v/v), for extracting the phenolic compounds were employed. Afterwards, the determination of total phenolic content (TPC), ortho-diphenols content (ODC), and flavonoid content (FC) as well as the antioxidant capacity of the obtained extracts using three different methods was performed. Since the best results of the spectrophotometric assays were obtained mostly with hydroethanolic extracts of stems (50:50, v/v), identification by HPLC-DAD has carried out. It was possible to conclude that the Tinta Roriz variety displayed the highest number of identified (poly)phenols.
Collapse
Affiliation(s)
- Rui Dias Costa
- Centre for the Research and Technology of Agro-Environmental and Biological Sciences (CITAB), Institute for Innovation, Capacity Building and Sustainability of Agri-Food Production (Inov4Agro), University of Trás-os-Montes e Alto Douro, Quinta de Prados, 5000-801 Vila Real, Portugal
| | - Raúl Domínguez-Perles
- Phytochemistry and Healthy Foods Lab (LabFAS), CEBAS-CSIC, Campus Universitario de Espinardo, Edif. 25, 30100 Murcia, Spain
| | - Ana Abraão
- Centre for the Research and Technology of Agro-Environmental and Biological Sciences (CITAB), Institute for Innovation, Capacity Building and Sustainability of Agri-Food Production (Inov4Agro), University of Trás-os-Montes e Alto Douro, Quinta de Prados, 5000-801 Vila Real, Portugal
| | - Véronique Gomes
- Centre for the Research and Technology of Agro-Environmental and Biological Sciences (CITAB), Institute for Innovation, Capacity Building and Sustainability of Agri-Food Production (Inov4Agro), University of Trás-os-Montes e Alto Douro, Quinta de Prados, 5000-801 Vila Real, Portugal
| | - Irene Gouvinhas
- Centre for the Research and Technology of Agro-Environmental and Biological Sciences (CITAB), Institute for Innovation, Capacity Building and Sustainability of Agri-Food Production (Inov4Agro), University of Trás-os-Montes e Alto Douro, Quinta de Prados, 5000-801 Vila Real, Portugal
| | - Ana Novo Barros
- Centre for the Research and Technology of Agro-Environmental and Biological Sciences (CITAB), Institute for Innovation, Capacity Building and Sustainability of Agri-Food Production (Inov4Agro), University of Trás-os-Montes e Alto Douro, Quinta de Prados, 5000-801 Vila Real, Portugal
| |
Collapse
|
2
|
de Moura C, Kabbas Junior T, Mendanha Cruz T, Boscacci Marques M, Araújo Vieira do Carmo M, Turnes Pasini Deolindo C, Daguer H, Azevedo L, Xu YQ, Granato D. Sustainable and effective approach to recover antioxidant compounds from purple tea (Camellia sinensis var. assamica cv. Zijuan) leaves. Food Res Int 2023; 164:112402. [PMID: 36737984 DOI: 10.1016/j.foodres.2022.112402] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2022] [Revised: 12/20/2022] [Accepted: 12/24/2022] [Indexed: 01/01/2023]
Abstract
Camellia sinensis var. assamica cv. Zijuan (purple tea) is known for its content of anthocyanins, flavan-3-ols, and bioactivities. This study aimed to verify the influence of solvent polarity, in a solid-liquid extraction, on the content of phenolic compounds and chlorophylls, instrumental color, and antioxidant activity. Different proportions of water and ethanol (0:100, 25:75, 50:50, 75:25, and 100:0 v/v) were used for extraction. The results showed that the hydroalcoholic extract (75 % ethanol + 25 % water) had the highest contents of total flavonoids, total anthocyanins, chlorophyll A, and total carotenoids, as well as presenting the highest color intensity, proportion of yellow pigments, and antioxidant activity (total reducing capacity and scavenging of the DPPH free radical). Twenty-two compounds were identified, with chlorogenic acid, hesperidin, (-)-epicatechin, (-)-epigallocatechin gallate, and isoquercitrin being the main phenolics. This phenolic-rich extract inhibited lipoperoxidation induced in egg yolk homogenate (IC50 = 455 mg/L), showed no hemolytic behavior when human erythrocytes were subjected to osmotic stress, and exerted in vitro cytotoxic effects against cancer and hybrid cells. The extract obtained with the mixture of non-toxic solvents presented critical bioactivities, as well as a comprehensive identification of phenolic compounds in the cultivar, and has potential to be used in technological applications.
Collapse
Affiliation(s)
- Cristiane de Moura
- Department of Chemistry, State University of Ponta Grossa (UEPG), Av. Carlos Cavalcanti, 4748, 84030-900, Ponta Grossa, PR, Brazil
| | - Tufy Kabbas Junior
- Department of Chemistry, State University of Ponta Grossa (UEPG), Av. Carlos Cavalcanti, 4748, 84030-900, Ponta Grossa, PR, Brazil
| | - Thiago Mendanha Cruz
- Department of Chemistry, State University of Ponta Grossa (UEPG), Av. Carlos Cavalcanti, 4748, 84030-900, Ponta Grossa, PR, Brazil
| | - Mariza Boscacci Marques
- Department of Chemistry, State University of Ponta Grossa (UEPG), Av. Carlos Cavalcanti, 4748, 84030-900, Ponta Grossa, PR, Brazil
| | | | - Carolina Turnes Pasini Deolindo
- Brazilian Ministry of Agriculture, Livestock, and Food Supply (MAPA), Federal Agricultural Defense Laboratory, 88102-600 São José, SC, Brazil
| | - Heitor Daguer
- Brazilian Ministry of Agriculture, Livestock, and Food Supply (MAPA), Federal Agricultural Defense Laboratory, 88102-600 São José, SC, Brazil
| | - Luciana Azevedo
- Nutrition Faculty, Federal University of Alfenas, Rua Gabriel Monteiro da Silva, 714, 37130-000 Alfenas, MG, Brazil
| | - Yong-Quan Xu
- Tea Research Institute, Chinese Academy of Agricultural Sciences, Key Laboratory of Tea Biology and Resources Utilization, Ministry of Agriculture and Rural Affairs, 9 South Meiling Road, Hangzhou 310008, China
| | - Daniel Granato
- Bioactivity & Applications Lab, Department of Biological Sciences, Faculty of Science and Engineering, School of Natural Sciences, University of Limerick, V94 T9PX Limerick, Ireland.
| |
Collapse
|
3
|
Effects of dynamic extraction conditions on the chemical composition and sensory quality traits of green tea. Lebensm Wiss Technol 2022. [DOI: 10.1016/j.lwt.2022.113972] [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]
|
4
|
Granato D. Functional foods to counterbalance low-grade inflammation and oxidative stress in cardiovascular diseases: a multilayered strategy combining food and health sciences. Curr Opin Food Sci 2022. [DOI: 10.1016/j.cofs.2022.100894] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
|
5
|
Milião GL, de Oliveira APH, de Souza Soares L, Arruda TR, Vieira ÉNR, de Castro Leite Junior BR. Unconventional Food Plants: nutritional aspects and perspectives for industrial applications. FUTURE FOODS 2022. [DOI: 10.1016/j.fufo.2022.100124] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
|
6
|
de Moura C, Kabbas Junior T, Pedreira FRDO, Azevedo L, Furtado MM, Sant'Ana AS, Franchin M, Gonzaga VR, Cui Y, Wen M, Zhang L, Pereira RP, Granato D. Purple tea (Camellia sinensis var. assamica) leaves as a potential functional ingredient: From extraction of phenolic compounds to cell-based antioxidant/biological activities. Food Chem Toxicol 2021; 159:112668. [PMID: 34774677 DOI: 10.1016/j.fct.2021.112668] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2021] [Revised: 11/04/2021] [Accepted: 11/07/2021] [Indexed: 12/28/2022]
Abstract
A statistical optimization study was used to maximize the extraction of bioactive compounds and antioxidant activity from green tea derived from purple leaves of Camellia sinensis var. assamica. Simultaneous optimization was applied, and a combination of 60 °C, 15 min, and a mass-solvent ratio of 1 g of dehydrated purple leaves to 62.3 mL of an ethanol/citric acid solution, were determined as the ideal extraction conditions. The optimized extract of purple tea leaves (OEPL) contained showed stability in relation to variations in pH, and lyophilized OEPL exerted cytotoxic and antiproliferative effects against cancerous cells (A549 and HCT8), demonstrated antimicrobial activity towards Listeria monocytogenes (ATCC 7644), Staphylococcus aureus (ATCC 13565) and Staphylococcus epidermidis (ATCC 12288), inhibition of α-amylase and α-glycosidase enzymes and reduced the release of pro-inflammatory cytokines (TNF-α, CXCL2/MIP-2, and IL-6) in lipopolysaccharides-stimulated RAW 264.7 macrophages. Thus, our results provide a broad assessment of the bioactivity of "green" extracts obtained by a simple and low-cost process using non-toxic solvents, and they have the potential to be used for technological applications.
Collapse
Affiliation(s)
- Cristiane de Moura
- Department of Chemistry, State University of Ponta Grossa (UEPG), Av. Carlos Cavalcanti, 4748, 84030-900, Ponta Grossa, PR, Brazil
| | - Tufy Kabbas Junior
- Department of Chemistry, State University of Ponta Grossa (UEPG), Av. Carlos Cavalcanti, 4748, 84030-900, Ponta Grossa, PR, Brazil
| | - Fernanda Rafaelly de O Pedreira
- LANTIN - Nutritional and Toxicological Analysis in vivo Laboratory, Federal University of Alfenas (UNIFAL-MG), Minas Gerais, MG, Brazil
| | - Luciana Azevedo
- LANTIN - Nutritional and Toxicological Analysis in vivo Laboratory, Federal University of Alfenas (UNIFAL-MG), Minas Gerais, MG, Brazil
| | - Marianna M Furtado
- Department of Food Science and Nutrition, Faculty of Food Engineering, University of Campinas, Campinas, SP, Brazil
| | - Anderson S Sant'Ana
- Department of Food Science and Nutrition, Faculty of Food Engineering, University of Campinas, Campinas, SP, Brazil
| | - Marcelo Franchin
- Faculty of Dentistry, Federal University of Alfenas (UNIFAL-MG), Minas Gerais, MG, Brazil
| | | | - Yuqing Cui
- State Key Laboratory of Tea Plant Biology and Utilization, Anhui Agricultural University, 230036, Hefei, China
| | - Mingchun Wen
- State Key Laboratory of Tea Plant Biology and Utilization, Anhui Agricultural University, 230036, Hefei, China
| | - Liang Zhang
- State Key Laboratory of Tea Plant Biology and Utilization, Anhui Agricultural University, 230036, Hefei, China
| | - Romaiana P Pereira
- Department of Chemistry, State University of Ponta Grossa (UEPG), Av. Carlos Cavalcanti, 4748, 84030-900, Ponta Grossa, PR, Brazil
| | - Daniel Granato
- Department of Biological Sciences, Faculty of Science and Engineering, University of Limerick, V94 T9PX Limerick, Ireland.
| |
Collapse
|
7
|
Fidelis M, Granato D. Technological applications of phenolic-rich extracts for the development of non-dairy foods and beverages. ADVANCES IN FOOD AND NUTRITION RESEARCH 2021; 98:101-123. [PMID: 34507640 DOI: 10.1016/bs.afnr.2021.02.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/22/2023]
Abstract
Fruits and other vegetables are sources of bioactive compounds, especially carotenoids, terpenoids, and phenolic compounds. With the focus on sustainability, these compounds' recovery has become a research trend in the last 20 years. However, the correct use of solvents and the steps required to assess the extracts' suitability to be added in food models have been poorly described. Thus, in this review, we attempt to show the pathways and provide guidance on the tailored-made use of solvents for recovering bioactive polyphenolic compounds from food matrices. Special attention is given to the toxicological safety of polyphenol-rich extracts and also their impacts on bioactivity and sensory acceptance of foods and beverages. Practical examples are described and commented on the applications of polyphenol-rich extracts in non-dairy foods and beverages. In summary, the alliance among food science, food technologies, biochemistry, and pharmacology are required to make the development of non-dairy polyphenol-rich foods feasible.
Collapse
Affiliation(s)
- Marina Fidelis
- Food Processing and Quality, Production Systems Unit, Natural Resources Institute Finland (Luke), Helsinki, Finland
| | - Daniel Granato
- Department of Biological Sciences, Faculty of Science and Engineering, University of Limerick, Limerick, Ireland.
| |
Collapse
|
8
|
Rischer H, Nohynek L, Puupponen-Pimiä R, Aguiar J, Rocchetti G, Lucini L, Câmara JS, Mendanha Cruz T, Boscacci Marques M, Granato D. Plant cell cultures of Nordic berry species: Phenolic and carotenoid profiling and biological assessments. Food Chem 2021; 366:130571. [PMID: 34284185 DOI: 10.1016/j.foodchem.2021.130571] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2021] [Revised: 06/08/2021] [Accepted: 07/07/2021] [Indexed: 12/19/2022]
Abstract
Plant cell cultures from cloudberry (CL), lingonberry (LI), stone berry (ST), arctic bramble (AB), and strawberry (SB) were studied in terms of their polyphenol and carotenoid composition, antioxidant activity, antihemolytic activity and cytotoxicity effects on cancerous cells. High-resolution mass spectrometry data showed that LI, presented the highest antioxidant activity, contained the highest contents of flavones, phenolic acids, lignans, and total carotenoids, while CL, ST and SB presented the opposite behavior. AB and SB presented the lowest FRAP and CUPRAC values, while AB and CL presented the lowest reducing power. SB presented the lowest antioxidant activity measured by single electron transfer assays and the lowest content of lignans, phenolic acids, and flavones. CL and LI decreased the viability of in vitro mammary gland adenocarcinoma while only LI decreased the viability of in vitro lung carcinoma and showed protective effects of human erythrocytes against mechanical hemolysis.
Collapse
Affiliation(s)
- Heiko Rischer
- VTT Technical Research Centre of Finland Ltd., Tietotie 2, P.O. Box 1000, 02044 VTT, Finland.
| | - Liisa Nohynek
- VTT Technical Research Centre of Finland Ltd., Tietotie 2, P.O. Box 1000, 02044 VTT, Finland
| | - Riitta Puupponen-Pimiä
- VTT Technical Research Centre of Finland Ltd., Tietotie 2, P.O. Box 1000, 02044 VTT, Finland
| | - Joselin Aguiar
- CQM - Centro de Química da Madeira, Universidade da Madeira, Campus Universitário da Penteada, 9020-105 Funchal, Portugal
| | - Gabriele Rocchetti
- Department for Sustainable Food Process, Università Cattolica del Sacro Cuore, Via Emilia Parmense 84, 29122 Piacenza, Italy
| | - Luigi Lucini
- Department for Sustainable Food Process, Università Cattolica del Sacro Cuore, Via Emilia Parmense 84, 29122 Piacenza, Italy
| | - José S Câmara
- CQM - Centro de Química da Madeira, Universidade da Madeira, Campus Universitário da Penteada, 9020-105 Funchal, Portugal; Departamento de Química, Faculdade de Ciências Exatas e da Engenharia, Universidade da Madeira. Campus da Penteada, 9020-105 Funchal, Portugal
| | - Thiago Mendanha Cruz
- Department of Chemistry, State University of Ponta Grossa, Av. Carlos Cavalcanti, 4748, 84030-900 Ponta Grossa, Brazil
| | - Mariza Boscacci Marques
- Department of Chemistry, State University of Ponta Grossa, Av. Carlos Cavalcanti, 4748, 84030-900 Ponta Grossa, Brazil
| | - Daniel Granato
- Food Processing and Quality, Natural Resources Institute Finland (Luke) - Latokartanonkaari 9, FI- 00790 Helsinki, Finland; Department of Biological Sciences, Faculty of Science and Engineering, University of Limerick, V94 T9PX Limerick, Ireland.
| |
Collapse
|
9
|
Fidelis M, Santos JS, Escher GB, Rocha RS, Cruz AG, Cruz TM, Marques MB, Nunes JB, do Carmo MAV, de Almeida LA, Kaneshima T, Azevedo L, Granato D. Polyphenols of jabuticaba [Myrciaria jaboticaba (Vell.) O.Berg] seeds incorporated in a yogurt model exert antioxidant activity and modulate gut microbiota of 1,2-dimethylhydrazine-induced colon cancer in rats. Food Chem 2021; 334:127565. [PMID: 32717686 DOI: 10.1016/j.foodchem.2020.127565] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2020] [Revised: 07/01/2020] [Accepted: 07/09/2020] [Indexed: 12/15/2022]
Abstract
The chemical composition, antioxidant activity (AA), cytotoxic activity, antihemolytic effects, and enzyme inhibition (EI) of lyophilized jabuticaba (Myrciaria jaboticaba) seed extract (LJE) was studied. The main compounds found were castalagin, vescalagin, procyanidin A2, and ellagic acid. LJE was more toxic to cancer cells than to normal cells, meaning relative toxicological safety. This cytotoxic effect can be attributed to the pro-oxidant effect observed in the reactive oxygen species (ROS) generation assay. LJE inhibited α-amylase, α-glucosidase, and ACE-I activities and protected human erythrocytes from hemolysis. LJE was incorporated into yogurts at different concentrations and the total phenolic content, AA, and EI increased in a dose-dependent manner. LJE-containing yogurt presented 86% sensory acceptance. The yogurt was administered to Wistar rats bearing cancer and it modulated the gut bacterial microbiota, having a prebiotic effect. LJE is a potential functional ingredient for food companies looking for TPC, AA, and prebiotic effect in vivo.
Collapse
Affiliation(s)
- Marina Fidelis
- Department of Food Engineering, State University of Ponta Grossa (UEPG), Av. Carlos Cavalcanti, 4748, 84030-900, Ponta Grossa, Brazil
| | - Jânio Sousa Santos
- Department of Food Engineering, State University of Ponta Grossa (UEPG), Av. Carlos Cavalcanti, 4748, 84030-900, Ponta Grossa, Brazil
| | - Graziela Bragueto Escher
- Department of Food Engineering, State University of Ponta Grossa (UEPG), Av. Carlos Cavalcanti, 4748, 84030-900, Ponta Grossa, Brazil
| | - Ramon Silva Rocha
- Federal Institute of Education, Science and Technology from Rio de Janeiro (IFRJ), 20270-021 Rio de Janeiro, Brazil
| | - Adriano Gomes Cruz
- Federal Institute of Education, Science and Technology from Rio de Janeiro (IFRJ), 20270-021 Rio de Janeiro, Brazil
| | - Thiago Mendanha Cruz
- Department of Chemistry, State University of Ponta Grossa, 84030-900, Ponta Grossa, Brazil
| | | | - Juliana Barbosa Nunes
- Department of Pathology, College of Medicine, University of São Paulo, São Paulo, Brazil
| | | | - Leonardo Augusto de Almeida
- Department of Microbiology and Immunology, Federal University of Alfenas, Rua Gabriel Monteiro da Silva, 714, 37130-000, Alfenas, Brazil
| | - Tai Kaneshima
- Department of Nutritional Science and Food Safety, Faculty of Applied Biosciences, Tokyo University of Agriculture, Tokyo 156-8502, Japan
| | - Luciana Azevedo
- Faculty of Nutrition, Federal University of Alfenas, Rua Gabriel Monteiro da Silva, 714, 37130-000, Alfenas, Brazil.
| | - Daniel Granato
- Department of Food Engineering, State University of Ponta Grossa (UEPG), Av. Carlos Cavalcanti, 4748, 84030-900, Ponta Grossa, Brazil; Food Processing and Quality, Innovative Food System, Production Systems Unit, Natural Resources Institute Finland (Luke), Tietotie 2, FI-02150 Espoo, Finland.
| |
Collapse
|
10
|
Willemann JR, Escher GB, Kaneshima T, Furtado MM, Sant'Ana AS, Vieira do Carmo MA, Azevedo L, Granato D. Response surface optimization of phenolic compounds extraction from camu-camu (Myrciaria dubia) seed coat based on chemical properties and bioactivity. J Food Sci 2020; 85:2358-2367. [PMID: 32645216 DOI: 10.1111/1750-3841.15327] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2020] [Revised: 05/19/2020] [Accepted: 05/21/2020] [Indexed: 01/11/2023]
Abstract
Food companies should comply with the requirements of a zero-waste concept to adapt to the circular economy requirements. In fruit companies, usually seeds are discarded without proper utilization and extraction of the bioactive compounds. Fruit seeds are sources of chemical compounds that can be extracted, studied, and applied in high value-added products. Thus, in this work the experimental conditions for the water extraction of phenolic compounds from camu-camu (Myrciaria dubia) seed coat were optimized using a central composite design and the desirability function. Total phenolic content (TPC), and condensed tannins (CT), DPPH radical scavenging activity, ferric reducing antioxidant capacity (FRAP), Folin-Ciocalteu reducing capacity (FCRC), and Cu2+ chelating ability were assessed. Seed coat extracted for 51.1 min using a 1:34.1 solid:liquid ratio was the optimal condition to extract 6,242 mg gallic acid equivalent (GAE)/100 g of TPC and 695 mg catechin equivalent (CE)/100 g of CT. The optimized extract displayed free-radical scavenging activity, reducing properties and ability to chelate Cu2+ , and inhibited the growth of Listeria monocytogenes, Pseudomonas aeruginosa, Salmonella Typhimurium, Salmonella Enteritidis, Bacillus cereus, and Staphylococcus aureus. Additionally, the lyophilized water extract inhibited the in vitro activity of α-amylase, α-glucosidase, and angiotensin converting enzyme and showed cytotoxic effects towards Caco-2, A549, and HepG2 cancer cells, but no cytotoxicity towards IMR90 cells. Vescalagin, castalagin, and 3,4-dihydroxybenzoic acid were the major phenolic compounds identified in the optimized extract. In conclusion, the optimized camu-camu seed coat water extract is a rich source of phenolic compounds with antioxidant, antidiabetic, antihypertensive, and antiproliferative effects. PRACTICAL APPLICATION: Camu-camu fruit pulp and seeds have been studied for their phenolic composition and bioactivity. However, seeds are usually discarded and represent an environmental problem in South American countries. We presented a methodological overview on the extraction optimization of the phenolic compounds from camu-camu seed coat and studied the bioactivity of the optimized extract using chemical, enzymatic, and cell-based experiments. Results can be used by camu-camu processors to obtain a phenolic-rich extract for industrial applications, without any further processing.
Collapse
Affiliation(s)
| | - Graziela Bragueto Escher
- Graduation School of Food Science and Technology, State University of Ponta Grossa, Ponta Grossa, Brazil
| | - Tai Kaneshima
- Department of Nutritional Science and Food Safety, Faculty of Applied Biosciences, Tokyo University of Agriculture, Tokyo, Japan
| | - Marianna Miranda Furtado
- Department of Food Science, Faculty of Food Engineering, University of Campinas, Campinas, Brazil
| | - Anderson S Sant'Ana
- Department of Food Science, Faculty of Food Engineering, University of Campinas, Campinas, Brazil
| | | | - Luciana Azevedo
- Faculty of Nutrition, Federal University of Alfenas, Alfenas, Brazil
| | - Daniel Granato
- Department of Food Engineering, State University of Ponta Grossa, Ponta Grossa, Brazil.,Food Processing and Quality, Production Systems Unit-Natural Resources Institute Finland (Luke)-Tietotie 2, Espoo, Finland
| |
Collapse
|