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Andrade AC, Borsoi FT, Saliba ASMC, de Alencar SM, Pastore GM, Arruda HS. Optimization of Ultrasonic-Assisted Extraction of Phenolic Compounds and Antioxidant Activity from Araticum Peel Using Response Surface Methodology. PLANTS (BASEL, SWITZERLAND) 2024; 13:2560. [PMID: 39339535 PMCID: PMC11434794 DOI: 10.3390/plants13182560] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/19/2024] [Revised: 09/06/2024] [Accepted: 09/09/2024] [Indexed: 09/30/2024]
Abstract
The peel represents a significant portion of the araticum fruit (about 40%), which becomes waste after its consumption or processing. Previous studies have shown that the araticum peel is rich in phenolic compounds; however, little is known about the ideal conditions for recovering these compounds. Therefore, response surface methodology, using a central composite rotatable design, was employed to optimize the extraction process to maximize the total phenolic compounds (TPCs) and enhance the Trolox equivalent antioxidant capacity (TEAC) from araticum peel. The variables optimized were ethanol concentration (EC; 20-80%, v/v), extraction time (ET; 5-45 min), and solid-solvent ratio (SSR; 10-100 mg/mL). Additionally, condensed tannins, antioxidant capacity against synthetic free radicals (TEAC and FRAP) and reactive oxygen species (ROS), and the phenolic compounds profile, were evaluated. Optimum extraction conditions were 50% (v/v) ethanol concentration, 5 min of extraction time, and 10 mg/mL solid-solvent ratio. Under these conditions, experimental TPCs and TEAC values were 70.16 mg GAE/g dw and 667.22 µmol TE/g dw, respectively, comparable with predicted models (68.47 mg GAE/g dw for TPCs and 677.04 µmol TE/g dw for TEAC). A high condensed tannins content (76.49 mg CE/g dw) was also observed and 12 phenolic compounds were identified, predominantly flavonoids (97.77%), including procyanidin B2, epicatechin, and catechin as the major compounds. Moreover, a potent antioxidant activity was observed against synthetic free radicals and ROS, especially in scavenging peroxyl and hydroxyl radicals. From this study, we obtained the ideal conditions for recovering phenolic compounds from araticum peel using a simple, fast, sustainable, and effective method, offering a promising opportunity for the management of this plant byproduct.
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Affiliation(s)
- Amanda Cristina Andrade
- Department of Food Science and Nutrition (DECAN), School of Food Engineering (FEA), University of Campinas (UNICAMP), Campinas 13083-862, São Paulo, Brazil
| | - Felipe Tecchio Borsoi
- Department of Food Science and Nutrition (DECAN), School of Food Engineering (FEA), University of Campinas (UNICAMP), Campinas 13083-862, São Paulo, Brazil
| | - Ana Sofia Martelli Chaib Saliba
- Department of Agri-Food Industry, Food and Nutrition, Luiz de Queiroz College of Agriculture, University of São Paulo, Piracicaba 13418-900, São Paulo, Brazil
| | - Severino Matias de Alencar
- Department of Agri-Food Industry, Food and Nutrition, Luiz de Queiroz College of Agriculture, University of São Paulo, Piracicaba 13418-900, São Paulo, Brazil
| | - Glaucia Maria Pastore
- Department of Food Science and Nutrition (DECAN), School of Food Engineering (FEA), University of Campinas (UNICAMP), Campinas 13083-862, São Paulo, Brazil
| | - Henrique Silvano Arruda
- Department of Food Science and Nutrition (DECAN), School of Food Engineering (FEA), University of Campinas (UNICAMP), Campinas 13083-862, São Paulo, Brazil
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Wang Y, Mao J, Zhang M, Liu L, Zhu Y, Gu M, Zhang J, Bu H, Sun Y, Sun J, Ma Y, Guo L, Zheng Y, Liu Q. An Umbrella Insight into the Phytochemistry Features and Biological Activities of Corn Silk: A Narrative Review. Molecules 2024; 29:891. [PMID: 38398644 PMCID: PMC10891732 DOI: 10.3390/molecules29040891] [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: 12/22/2023] [Revised: 02/03/2024] [Accepted: 02/06/2024] [Indexed: 02/25/2024] Open
Abstract
Corn silk (Zea mays L.) is the stigma of an annual gramineous plant named corn, which is distributed in many regions worldwide and has a long history of medicinal use. In recent years, with the sustainable development of traditional Chinese medicine, studies of corn silk based on modern technologies, such as GC-MS, LC-MS, and other analytical means, have offered more comprehensive analyses. Phytochemistry studies have shown that the main bioactive components in corn silk include flavonoids, polyphenols, phenolic acids, fatty acids, and terpenoids. Pharmacological studies have shown that corn silk extract has various pharmacological effects, such as reducing blood lipids, lowering blood pressure, regulating blood sugar levels, anti-inflammatory effects, and anti-oxidation effects. In this paper, the related research on corn silk from the past few years is summarized to provide a theoretical reference for the further development and utilization of corn silk.
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Affiliation(s)
- Yumei Wang
- The Research Institute of Medicine and Pharmacy, Qiqihar Medical University, Qiqihar 161006, China; (Y.W.); (J.M.); (M.Z.); (Y.Z.); (M.G.); (J.Z.); (Y.S.); (J.S.); (Y.M.)
| | - Jialin Mao
- The Research Institute of Medicine and Pharmacy, Qiqihar Medical University, Qiqihar 161006, China; (Y.W.); (J.M.); (M.Z.); (Y.Z.); (M.G.); (J.Z.); (Y.S.); (J.S.); (Y.M.)
- School of Pharmacy, Qiqihar Medical University, Qiqihar 161006, China;
| | - Meng Zhang
- The Research Institute of Medicine and Pharmacy, Qiqihar Medical University, Qiqihar 161006, China; (Y.W.); (J.M.); (M.Z.); (Y.Z.); (M.G.); (J.Z.); (Y.S.); (J.S.); (Y.M.)
- School of Pharmacy, Qiqihar Medical University, Qiqihar 161006, China;
| | - Lei Liu
- Graduate School, Qiqihar Medical University, Qiqihar 161006, China;
| | - Yu Zhu
- The Research Institute of Medicine and Pharmacy, Qiqihar Medical University, Qiqihar 161006, China; (Y.W.); (J.M.); (M.Z.); (Y.Z.); (M.G.); (J.Z.); (Y.S.); (J.S.); (Y.M.)
| | - Meiling Gu
- The Research Institute of Medicine and Pharmacy, Qiqihar Medical University, Qiqihar 161006, China; (Y.W.); (J.M.); (M.Z.); (Y.Z.); (M.G.); (J.Z.); (Y.S.); (J.S.); (Y.M.)
- School of Pharmacy, Qiqihar Medical University, Qiqihar 161006, China;
| | - Jinling Zhang
- The Research Institute of Medicine and Pharmacy, Qiqihar Medical University, Qiqihar 161006, China; (Y.W.); (J.M.); (M.Z.); (Y.Z.); (M.G.); (J.Z.); (Y.S.); (J.S.); (Y.M.)
| | - Hongzhou Bu
- Chinese Medicine Detection Laboratory, Drugs Control Center of Qiqihar, Qiqihar 161006, China;
| | - Yu Sun
- The Research Institute of Medicine and Pharmacy, Qiqihar Medical University, Qiqihar 161006, China; (Y.W.); (J.M.); (M.Z.); (Y.Z.); (M.G.); (J.Z.); (Y.S.); (J.S.); (Y.M.)
| | - Jia Sun
- The Research Institute of Medicine and Pharmacy, Qiqihar Medical University, Qiqihar 161006, China; (Y.W.); (J.M.); (M.Z.); (Y.Z.); (M.G.); (J.Z.); (Y.S.); (J.S.); (Y.M.)
| | - Yukun Ma
- The Research Institute of Medicine and Pharmacy, Qiqihar Medical University, Qiqihar 161006, China; (Y.W.); (J.M.); (M.Z.); (Y.Z.); (M.G.); (J.Z.); (Y.S.); (J.S.); (Y.M.)
| | - Lina Guo
- School of Pharmacy, Qiqihar Medical University, Qiqihar 161006, China;
| | - Yan Zheng
- Office of Academic Research, Qiqihar Medical University, Qiqihar 161006, China;
| | - Qi Liu
- The Research Institute of Medicine and Pharmacy, Qiqihar Medical University, Qiqihar 161006, China; (Y.W.); (J.M.); (M.Z.); (Y.Z.); (M.G.); (J.Z.); (Y.S.); (J.S.); (Y.M.)
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