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Yang Z, Li F, Shen S, Wang X, Nihmot Ibrahim A, Zheng H, Zhang J, Ji X, Liao X, Zhang Y. Natural chlorophyll: a review of analysis methods, health benefits, and stabilization strategies. Crit Rev Food Sci Nutr 2024:1-15. [PMID: 38795062 DOI: 10.1080/10408398.2024.2356259] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/27/2024]
Abstract
Chlorophyll (Chl) is a natural pigment, widely distributed ranging from photosynthetic prokaryotes to higher plants, with an annual yield of up to 1.2 billion tons worldwide. Five types of Chls are observed in nature, that can be distinguished and identified using spectroscopy and mass spectrometry. Chl is also used in the food industry owing to its bioactivities, including obesity prevention, inflammation reduction, viral infection inhibition, anticancer effects, anti-oxidation, and immunostimulatory properties. It has great potential of being applied as a colorant and dietary supplement in the food industry. However, Chl is unstable under various enzymatic, acidic, heat, and light conditions, which limit its application. Although some strategies, such as aggregation with other food components, microencapsulation, and metal cation replacement, have been proposed to overcome these limitations, they are still not enough to facilitate its widespread application. Therefore, stabilization strategies and bioactivities of Chl need to be expected to expand its application in various fields, thereby aiding in the sustainable development of mankind.
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Affiliation(s)
- Zhaotian Yang
- College of Food Science and Nutritional Engineering, China Agricultural University, Beijing, PR China
- National Engineering Research Center for Fruits and Vegetables Processing Ministry of Science and Technology, China Agricultural University, Beijing, PR China
- Key Laboratory of Fruits and Vegetables Processing Ministry of Agriculture and Rural Affairs, China Agricultural University, Beijing, PR China
- Sanya Institute of China Agricultural University, Sanya, PR China
| | - Fangwei Li
- College of Food Science and Nutritional Engineering, China Agricultural University, Beijing, PR China
- National Engineering Research Center for Fruits and Vegetables Processing Ministry of Science and Technology, China Agricultural University, Beijing, PR China
- Key Laboratory of Fruits and Vegetables Processing Ministry of Agriculture and Rural Affairs, China Agricultural University, Beijing, PR China
- College of Food Science and Engineering, Ocean University of China, Qingdao, PR China
| | - Suxia Shen
- College of Food Science and Nutritional Engineering, China Agricultural University, Beijing, PR China
- National Engineering Research Center for Fruits and Vegetables Processing Ministry of Science and Technology, China Agricultural University, Beijing, PR China
- Key Laboratory of Fruits and Vegetables Processing Ministry of Agriculture and Rural Affairs, China Agricultural University, Beijing, PR China
| | - Xiao Wang
- College of Food Science and Nutritional Engineering, China Agricultural University, Beijing, PR China
- National Engineering Research Center for Fruits and Vegetables Processing Ministry of Science and Technology, China Agricultural University, Beijing, PR China
- Key Laboratory of Fruits and Vegetables Processing Ministry of Agriculture and Rural Affairs, China Agricultural University, Beijing, PR China
| | - Ajibola Nihmot Ibrahim
- College of Food Science and Nutritional Engineering, China Agricultural University, Beijing, PR China
- National Engineering Research Center for Fruits and Vegetables Processing Ministry of Science and Technology, China Agricultural University, Beijing, PR China
- Key Laboratory of Fruits and Vegetables Processing Ministry of Agriculture and Rural Affairs, China Agricultural University, Beijing, PR China
| | - Hongli Zheng
- College of Food Science and Nutritional Engineering, China Agricultural University, Beijing, PR China
- National Engineering Research Center for Fruits and Vegetables Processing Ministry of Science and Technology, China Agricultural University, Beijing, PR China
- Key Laboratory of Fruits and Vegetables Processing Ministry of Agriculture and Rural Affairs, China Agricultural University, Beijing, PR China
| | - Jinghao Zhang
- College of Food Science and Nutritional Engineering, China Agricultural University, Beijing, PR China
- National Engineering Research Center for Fruits and Vegetables Processing Ministry of Science and Technology, China Agricultural University, Beijing, PR China
- Key Laboratory of Fruits and Vegetables Processing Ministry of Agriculture and Rural Affairs, China Agricultural University, Beijing, PR China
| | - Xingyu Ji
- College of Food Science and Nutritional Engineering, China Agricultural University, Beijing, PR China
- National Engineering Research Center for Fruits and Vegetables Processing Ministry of Science and Technology, China Agricultural University, Beijing, PR China
- Key Laboratory of Fruits and Vegetables Processing Ministry of Agriculture and Rural Affairs, China Agricultural University, Beijing, PR China
| | - Xiaojun Liao
- College of Food Science and Nutritional Engineering, China Agricultural University, Beijing, PR China
- National Engineering Research Center for Fruits and Vegetables Processing Ministry of Science and Technology, China Agricultural University, Beijing, PR China
- Key Laboratory of Fruits and Vegetables Processing Ministry of Agriculture and Rural Affairs, China Agricultural University, Beijing, PR China
| | - Yan Zhang
- College of Food Science and Nutritional Engineering, China Agricultural University, Beijing, PR China
- National Engineering Research Center for Fruits and Vegetables Processing Ministry of Science and Technology, China Agricultural University, Beijing, PR China
- Key Laboratory of Fruits and Vegetables Processing Ministry of Agriculture and Rural Affairs, China Agricultural University, Beijing, PR China
- Sanya Institute of China Agricultural University, Sanya, PR China
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Wang L, Li W, Li F, Zeng M. Mechanism of Enhancing Chlorophyll Photostability through Light-Induced Chlorophyll/Phycocyanin Aggregation. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2023; 71:19010-19019. [PMID: 37991348 DOI: 10.1021/acs.jafc.3c06096] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2023]
Abstract
Chlorophyll (Chl) is the most abundant pigment in photosynthetic plants, but it is prone to degradation during processing and storage, limiting its usage in the food industry. This study developed a technique for increasing Chl photostability by light-induced Chl/phycocyanin (PC) triple synergistic aggregation. Under continuous illumination settings, the results revealed that the Chl retention increased to 406% compared to the control. A model of Chl/PC complexes was constructed using multiligand molecular docking, and the aggregation mechanism was investigated by quantum chemistry, which demonstrated that PC could provide an ideal central hydrophobic cavity for Chl aggregates and thus further enhance the aggregation of Chl on the basis of Chl/PC complexes. The core driver of the improved photostability of Chl is photoexcitation-induced Chl aggregates. This study enriches our understanding of the interaction mechanism between PC and Chl, and we hope that this study can provide broader ideas for the development of natural pigment products.
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Affiliation(s)
- Lijuan Wang
- Sanya Institute of Oceanography, Ocean University of China, Sanya 572000, People's Republic of China
- College of Food Science and Engineering, Ocean University of China, Qingdao 266400, People's Republic of China
| | - Wei Li
- Sanya Institute of Oceanography, Ocean University of China, Sanya 572000, People's Republic of China
- College of Food Science and Engineering, Ocean University of China, Qingdao 266400, People's Republic of China
| | - Fangwei Li
- Sanya Institute of Oceanography, Ocean University of China, Sanya 572000, People's Republic of China
- College of Food Science and Engineering, Ocean University of China, Qingdao 266400, People's Republic of China
| | - Mingyong Zeng
- Sanya Institute of Oceanography, Ocean University of China, Sanya 572000, People's Republic of China
- College of Food Science and Engineering, Ocean University of China, Qingdao 266400, People's Republic of China
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Ebrahimi P, Shokramraji Z, Tavakkoli S, Mihaylova D, Lante A. Chlorophylls as Natural Bioactive Compounds Existing in Food By-Products: A Critical Review. PLANTS (BASEL, SWITZERLAND) 2023; 12:1533. [PMID: 37050159 PMCID: PMC10096697 DOI: 10.3390/plants12071533] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/10/2023] [Revised: 03/28/2023] [Accepted: 03/31/2023] [Indexed: 06/19/2023]
Abstract
Chlorophylls are a group of naturally occurring pigments that are responsible for the green color in plants. This pigment group could have numerous health benefits due to its high antioxidant activity, including anti-inflammatory, anti-cancer, and anti-obesity properties. Many food by-products contain a high level of chlorophyll content. These by-products are discarded and considered environmental pollutants if not used as a source of bioactive compounds. The recovery of chlorophylls from food by-products is an interesting approach for increasing the sustainability of food production. This paper provides insight into the properties of chlorophylls and the effect of different treatments on their stability, and then reviews the latest research on the extraction of chlorophylls from a sustainable perspective.
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Affiliation(s)
- Peyman Ebrahimi
- Department of Agronomy, Food, Natural Resources, Animals, and Environment—DAFNAE, University of Padova, Viale dell’Università, 16, 35020 Legnaro, Italy;
| | - Zahra Shokramraji
- Department of Land, Environment, Agriculture, and Forestry—TESAF, University of Padova, Viale dell’Università, 16, 35020 Legnaro, Italy; (Z.S.); (S.T.)
| | - Setareh Tavakkoli
- Department of Land, Environment, Agriculture, and Forestry—TESAF, University of Padova, Viale dell’Università, 16, 35020 Legnaro, Italy; (Z.S.); (S.T.)
| | - Dasha Mihaylova
- Department of Biotechnology, University of Food Technologies, 26 Maritza Blvd., 4002 Plovdiv, Bulgaria;
| | - Anna Lante
- Department of Agronomy, Food, Natural Resources, Animals, and Environment—DAFNAE, University of Padova, Viale dell’Università, 16, 35020 Legnaro, Italy;
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Gkioni MD, Andriopoulos V, Koutra E, Hatziantoniou S, Kornaros M, Lamari FN. Ultrasound-Assisted Extraction of Nannochloropsis oculata with Ethanol and Betaine: 1,2-Propanediol Eutectic Solvent for Antioxidant Pigment-Rich Extracts Retaining Nutritious the Residual Biomass. Antioxidants (Basel) 2022; 11:antiox11061103. [PMID: 35740000 PMCID: PMC9220189 DOI: 10.3390/antiox11061103] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2022] [Revised: 05/23/2022] [Accepted: 05/29/2022] [Indexed: 02/04/2023] Open
Abstract
The aim of this study was the development of an efficient “green” extraction method of Nannochloropsis oculata to produce antioxidant extracts and nutritious residual biomass. Twenty-one extraction methods were evaluated by measuring the reactivity with the Folin–Ciocalteu reagent: ultrasonication or maceration at different temperatures with different organic solvents, extraction at different pH values, enzyme-assisted extraction, encapsulation with β-cyclodextrin, and the use of natural deep eutectic solvents. Ultrasound-assisted extraction with ethanol or betaine: 1,2-propanediol in a molar ratio of 2:5 (BP) had optimal extractive capacity. Both extracts were evaluated with antioxidant assays and the ethanol extract exhibited significantly higher (at least twofold) values. The determination of carotenoids by LC-MS and HPLC-DAD revealed the dominance of violaxanthin and antheraxanthin and their fourfold higher concentrations in the ethanol extract. The 1H-NMR characterization of the ethanol extract confirmed the results of the colorimetric and chromatographic assays. The microalgal biomass was characterized before and after the extraction in terms of humidity, ash, carbohydrates, proteins, chlorophyll-a, carotenoids, and lipids; the identity and content of the latter were determined with gas chromatography. BP caused a smaller depletion of the lipids from the biomass compared to ethanol, but proteins, carbohydrates, and ash were at a higher content in the biomass obtained after ethanol extraction, whereas the biomass was dry and easy to handle. Although further optimization may take place for the scale-up of those procedures, our study paves the way for a green strategy for the valorization of microalgae in cosmetics without generating waste, since the remaining biomass can be used for aquafeed.
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Affiliation(s)
- Maria D. Gkioni
- Department of Pharmacy, School of Health Sciences, University of Patras, 26504 Patras, Greece; (M.D.G.); (S.H.)
| | - Vasilis Andriopoulos
- Department of Chemical Engineering, School of Engineering, University of Patras, 26504 Patras, Greece; (V.A.); (E.K.); (M.K.)
| | - Eleni Koutra
- Department of Chemical Engineering, School of Engineering, University of Patras, 26504 Patras, Greece; (V.A.); (E.K.); (M.K.)
| | - Sophia Hatziantoniou
- Department of Pharmacy, School of Health Sciences, University of Patras, 26504 Patras, Greece; (M.D.G.); (S.H.)
| | - Michael Kornaros
- Department of Chemical Engineering, School of Engineering, University of Patras, 26504 Patras, Greece; (V.A.); (E.K.); (M.K.)
| | - Fotini N. Lamari
- Department of Pharmacy, School of Health Sciences, University of Patras, 26504 Patras, Greece; (M.D.G.); (S.H.)
- Correspondence: ; Tel.: +30-2610962335
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