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Lee ZJ, Xie C, Duan X, Ng K, Suleria HAR. Optimization of Ultrasonic Extraction Parameters for the Recovery of Phenolic Compounds in Brown Seaweed: Comparison with Conventional Techniques. Antioxidants (Basel) 2024; 13:409. [PMID: 38671858 PMCID: PMC11047748 DOI: 10.3390/antiox13040409] [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: 03/05/2024] [Revised: 03/25/2024] [Accepted: 03/26/2024] [Indexed: 04/28/2024] Open
Abstract
Seaweed, in particular, brown seaweed, has gained research interest in the past few years due to its distinctive phenolic profile that has a multitude of bioactive properties. In order to obtain the maximum extraction efficiency of brown seaweed phenolic compounds, Response Surface Methodology was utilized to optimize the ultrasound-assisted extraction (UAE) conditions such as the amplitude, time, solvent:solid ratio, and NaOH concentration. Under optimal conditions, UAE had a higher extraction efficiency of free and bound phenolic compounds compared to conventional extraction (stirred 16 h at 4 °C). This led to higher antioxidant activity in the seaweed extract obtained under UAE conditions. The profiling of phenolic compounds using LC-ESI-QTOF-MS/MS identified a total of 25 phenolics with more phenolics extracted from the free phenolic extraction compared to the bound phenolic extracts. Among them, peonidin 3-O-diglucodise-5-O-glucoside and hesperidin 5,7-O-diglucuronide are unique compounds that were identified in P. comosa, E. radiata and D. potatorum, which are not reported in plants. Overall, our findings provided optimal phenolic extraction from brown seaweed for research into employing brown seaweed as a functional food.
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Affiliation(s)
| | | | | | | | - Hafiz A. R. Suleria
- School of Agriculture, Food and Ecosystem Sciences, Faculty of Science, The University of Melbourne, Parkville 3052, Australia; (Z.J.L.); (C.X.); (X.D.); (K.N.)
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Susanti I, Pratiwi R, Rosandi Y, Hasanah AN. Separation Methods of Phenolic Compounds from Plant Extract as Antioxidant Agents Candidate. PLANTS (BASEL, SWITZERLAND) 2024; 13:965. [PMID: 38611494 PMCID: PMC11013868 DOI: 10.3390/plants13070965] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/27/2024] [Revised: 03/18/2024] [Accepted: 03/22/2024] [Indexed: 04/14/2024]
Abstract
In recent years, discovering new drug candidates has become a top priority in research. Natural products have proven to be a promising source for such discoveries as many researchers have successfully isolated bioactive compounds with various activities that show potential as drug candidates. Among these compounds, phenolic compounds have been frequently isolated due to their many biological activities, including their role as antioxidants, making them candidates for treating diseases related to oxidative stress. The isolation method is essential, and researchers have sought to find effective procedures that maximize the purity and yield of bioactive compounds. This review aims to provide information on the isolation or separation methods for phenolic compounds with antioxidant activities using column chromatography, medium-pressure liquid chromatography, high-performance liquid chromatography, counter-current chromatography, hydrophilic interaction chromatography, supercritical fluid chromatography, molecularly imprinted technologies, and high-performance thin layer chromatography. For isolation or purification, the molecularly imprinted technologies represent a more accessible and more efficient procedure because they can be applied directly to the extract to reduce the complicated isolation process. However, it still requires further development and refinement.
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Affiliation(s)
- Ike Susanti
- Pharmaceutical Analysis and Medicinal Chemistry Department, Faculty of Pharmacy, Universitas Padjadjaran, Jl Raya Bandung Sumedang KM 21 r, Sumedang 45363, Indonesia
| | - Rimadani Pratiwi
- Pharmaceutical Analysis and Medicinal Chemistry Department, Faculty of Pharmacy, Universitas Padjadjaran, Jl Raya Bandung Sumedang KM 21 r, Sumedang 45363, Indonesia
| | - Yudi Rosandi
- Faculty of Mathematics and Natural Sciences, Universitas Padjadjaran, Jl. Raya Bandung Sumedang KM 21, Sumedang 45363, Indonesia
| | - Aliya Nur Hasanah
- Pharmaceutical Analysis and Medicinal Chemistry Department, Faculty of Pharmacy, Universitas Padjadjaran, Jl Raya Bandung Sumedang KM 21 r, Sumedang 45363, Indonesia
- Drug Development Study Center, Faculty of Pharmacy, Universitas Padjadjaran, Jl. Raya Bandung Sumedang KM 21, Sumedang 45363, Indonesia
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Li T, Wu W, Zhang J, Wu Q, Zhu S, Niu E, Wang S, Jiang C, Liu D, Zhang C. Antioxidant Capacity of Free and Bound Phenolics from Olive Leaves: In Vitro and In Vivo Responses. Antioxidants (Basel) 2023; 12:2033. [PMID: 38136153 PMCID: PMC10740763 DOI: 10.3390/antiox12122033] [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: 10/31/2023] [Revised: 11/19/2023] [Accepted: 11/20/2023] [Indexed: 12/24/2023] Open
Abstract
Olive leaves are rich in phenolic compounds. This study explored the chemical profiles and contents of free phenolics (FPs) and bound phenolics (BPs) in olive leaves, and further investigated and compared the antioxidant properties of FPs and BPs using chemical assays, cellular antioxidant evaluation systems, and in vivo mouse models. The results showed that FPs and BPs have different phenolic profiles; 24 free and 14 bound phenolics were identified in FPs and BPs, respectively. Higher levels of phenolic acid (i.e., sinapinic acid, 4-coumaric acid, ferulic acid, and caffeic acid) and hydroxytyrosol were detected in the BPs, while flavonoids, triterpenoid acids, and iridoids were more concentrated in the free form. FPs showed a significantly higher total flavonoid content (TFC), total phenolic content (TPC), and chemical antioxidant properties than those of BPs (p < 0.05). Within the range of doses (20-250 μg/mL), both FPs and BPs protected HepG2 cells from H2O2-induced oxidative stress injury, and there was no significant difference in cellular antioxidant activity between FPs and BPs. The in vivo experiments suggested that FP and BP treatment inhibited malondialdehyde (MDA) levels in a D-galactose-induced oxidation model in mice, and significantly increased antioxidant enzyme activity of superoxide dismutase (SOD), glutathione peroxidase (GSH-Px), catalase (CAT), and the total antioxidant capacity (T-AOC). Mechanistically, FPs and BPs exert their antioxidant activity in distinct ways; FPs ameliorated D-galactose-induced oxidative stress injury partly via the activation of nuclear factor erythroid-2-related factor 2 (Nrf2) signaling pathway, while the BP mechanisms need further study.
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Affiliation(s)
- Ting Li
- Food Science Institute, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China; (T.L.); (J.Z.); (Q.W.)
- College of Food and Health, Zhejiang A&F University, Hangzhou 311300, China
| | - Wenjun Wu
- Gansu Research Academy of Forestry Science and Technology, Lanzhou 730020, China; (W.W.); (C.J.)
| | - Jianming Zhang
- Food Science Institute, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China; (T.L.); (J.Z.); (Q.W.)
| | - Qinghang Wu
- Food Science Institute, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China; (T.L.); (J.Z.); (Q.W.)
| | - Shenlong Zhu
- Institute of Crop and Nuclear Technology Utilization, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China; (S.Z.); (E.N.)
| | - Erli Niu
- Institute of Crop and Nuclear Technology Utilization, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China; (S.Z.); (E.N.)
| | - Shengfeng Wang
- Research Center of Analysis and Measurement, Zhejiang University of Technology, Hangzhou 310014, China;
| | - Chengying Jiang
- Gansu Research Academy of Forestry Science and Technology, Lanzhou 730020, China; (W.W.); (C.J.)
| | - Daqun Liu
- Food Science Institute, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China; (T.L.); (J.Z.); (Q.W.)
| | - Chengcheng Zhang
- Food Science Institute, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China; (T.L.); (J.Z.); (Q.W.)
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Shahidi F, Hossain A. Importance of Insoluble-Bound Phenolics to the Antioxidant Potential Is Dictated by Source Material. Antioxidants (Basel) 2023; 12:antiox12010203. [PMID: 36671065 PMCID: PMC9854999 DOI: 10.3390/antiox12010203] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2022] [Revised: 01/11/2023] [Accepted: 01/13/2023] [Indexed: 01/19/2023] Open
Abstract
Insoluble-bound phenolics (IBPs) are extensively found in the cell wall and distributed in various tissues/organs of plants, mainly cereals, legumes, and pulses. In particular, IBPs are mainly distributed in the protective tissues, such as seed coat, pericarp, and hull, and are also available in nutritional tissues, including germ, epicotyl, hypocotyl radicle, and endosperm, among others. IBPs account for 20-60% of the total phenolics in food matrices and can exceed 70% in leaves, flowers, peels, pulps, seeds, and other counterparts of fruits and vegetables, and up to 99% in cereal brans. These phenolics are mostly covalently bound to various macromolecules such as hemicellulose, cellulose, structural protein, arabinoxylan, and pectin, which can be extracted by acid, alkali, or enzymatic hydrolysis along with various thermal and non-thermal treatments. IBPs obtained from various sources exhibited a wide range of biological activities, including antioxidant, anti-inflammatory, antihypertensive, anticancer, anti-obesity, and anti-diabetic properties. In this contribution, the chemistry, distribution, biological activities, metabolism, and extraction methods of IBPs, and how they are affected by various treatments, are summarized. In particular, the effect of thermal and non-thermal processing on the release of IBPs and their antioxidant potential is discussed.
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Peng J, Abdulla R, Li Y, Liu XY, He F, Xin XL, Aisa HA. Potential anti-diabetic components of Apocynum venetum L. flowers: Optimization, chemical characterization and quality evaluation. J Food Compost Anal 2023. [DOI: 10.1016/j.jfca.2022.104930] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Xiang T, Wu L, Isah MB, Chen C, Zhang X. Apocynum venetum, a medicinal, economical and ecological plant: a review update. PeerJ 2023; 11:e14966. [PMID: 36908824 PMCID: PMC10000306 DOI: 10.7717/peerj.14966] [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: 11/22/2022] [Accepted: 02/07/2023] [Indexed: 03/09/2023] Open
Abstract
Apocynum venetum L. is an important medicinal perennial rhizome plant with good ecological and economic value. Its leaves have many pharmacological effects such as anti-inflammatory, anti-depression, anti-anxiolytic, etc., while its fibers have the title of "king of wild fibers". Furthermore, it was suitable for the restoration of degraded saline soil in arid areas. An increasing studies have been published in the past years. A scientometric analysis was used to analyze the publications of Apocynum venetum L. to clearly review the pharmacology, fiber application of Apocynum venetum L. and the potential value with its similar species (Apocynum pictum Schrenk) to the environment.
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Affiliation(s)
- Tian Xiang
- Chinese-German Joint Laboratory for Natural Product Research, Qinba State Key Laboratory of Biological Resources and Ecological Environment, Shaanxi University of Technology, Hanzhong, Shaanxi, China
| | - Longjiang Wu
- Chinese-German Joint Laboratory for Natural Product Research, Qinba State Key Laboratory of Biological Resources and Ecological Environment, Shaanxi University of Technology, Hanzhong, Shaanxi, China
| | - Murtala Bindawa Isah
- Department of Biochemistry, Faculty of Natural and Applied Sciences, Umaru Musa Yar'adua University Katsina, Katsina, Nigeria.,Biomedical Research and Training Centre, Yobe State University, Damaturu, Nigeria
| | - Chen Chen
- Chinese-German Joint Laboratory for Natural Product Research, Qinba State Key Laboratory of Biological Resources and Ecological Environment, Shaanxi University of Technology, Hanzhong, Shaanxi, China
| | - Xiaoying Zhang
- Chinese-German Joint Laboratory for Natural Product Research, Qinba State Key Laboratory of Biological Resources and Ecological Environment, Shaanxi University of Technology, Hanzhong, Shaanxi, China.,Centre of Molecular and Environmental Biology (CBMA), Department of Biology, Campus de Gualtar, University of Minho, Braga, Portugal.,Department of Biomedical Sciences, Ontario Veterinary College, University of Guelph, Guelph, ON, Canada
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Extraction, purification and structural characterization of polysaccharides from Apocynum venetum L. roots with anti-inflammatory activity. Process Biochem 2022. [DOI: 10.1016/j.procbio.2022.06.035] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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Bhagya Raj G, Dash KK. Microencapsulation of betacyanin from dragon fruit peel by complex coacervation: Physicochemical characteristics, thermal stability, and release profile of microcapsules. FOOD BIOSCI 2022. [DOI: 10.1016/j.fbio.2022.101882] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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