|
1
|
Shuai X, Dai T, McClements DJ, Ruan R, Du L, Liu Y, Chen J. Hypolipidemic effects of macadamia oil are related to AMPK activation and oxidative stress relief: In vitro and in vivo studies. Food Res Int 2023; 168:112772. [PMID: 37120222 DOI: 10.1016/j.foodres.2023.112772] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2022] [Revised: 01/19/2023] [Accepted: 03/24/2023] [Indexed: 03/28/2023]
Abstract
Macadamia oil is rich in monounsaturated fatty acids, especially a high level of palmitoleic acid, which may have beneficial health effects by lowering blood lipid levels. In our study, the hypolipidemic effects of macadamia oil and its potential mechanisms of action were investigated using a combination of in vitro and in vivo assays. The results showed that macadamia oil significantly reduced lipid accumulation, and improved triglycerides (TG), total cholesterol (TC), high-density lipoprotein cholesterol (HDL-C), and low-density lipoprotein cholesterol (LDL-C) levels in oleic acid-induced high-fat HepG2 cells. The macadamia oil treatment also exhibited antioxidant effects, as seen by its ability to reduce reactive oxygen species and malondialdehyde (MDA) levels, and increase superoxide dismutase (SOD) activity. The effects of 1000 μg/mL of macadamia oil were comparable to that of 4.19 μg/mL simvastatin. The results of qRT-PCR and western blotting analyses indicated that macadamia oil effectively inhibited hyperlipidemia by reducing the expression levels of SREBP-1c, PPAR-γ, ACC and FAS and by enhancing the expression levels of HO-1, NRF2 and γ-GCS, via AMPK activation and oxidative stress relief, respectively. In addition, different doses of macadamia oil were found to significantly improve liver lipid accumulation, reduce serum and liver TC, TG, and LDL-C levels, increase HDL-C levels, increase antioxidant enzyme (SOD, GSH-Px, and T-AOC) activity, and decrease the MDA content of mice on a high-fat diet. These results indicated that macadamia oil had a hypolipidemic effect and provide insights that might facilitate the development of functional food and dietary supplements.
Collapse
Affiliation(s)
- Xixiang Shuai
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, China
| | - Taotao Dai
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, China
| | | | - Roger Ruan
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, China
| | - Liqing Du
- South Subtropical Crop Research Institute, China Academy of Tropical Agricultural Sciences, Zhanjiang 524091, China
| | - Yuhuan Liu
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, China
| | - Jun Chen
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, China.
| |
Collapse
|
|
2
|
Ye R, Long J, Peng D, Wang Y, Zhang G, Xiao G, Zheng Y, Xiao T, Wen Y, Li J, Li H. Oil/water separation using elastic bio-aerogels derived from bagasse: Role of fabrication steps. JOURNAL OF HAZARDOUS MATERIALS 2022; 438:129529. [PMID: 35999721 DOI: 10.1016/j.jhazmat.2022.129529] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/21/2022] [Revised: 06/28/2022] [Accepted: 07/01/2022] [Indexed: 06/15/2023]
Abstract
Bio-aerogels hold great promise for selective oil separation from water due to their light weight and high sustainability. However, how the fabrication methods impact the elasticity and oil sorption performance of bio-aerogels still needs systematic comparison and in-depth investigation. In this study, the fabrication of hydrophobic bio-aerogels with good elasticity and reusability was optimized using a factorial design based on the dosages of bagasse-derived cellulose nanofiber, sodium alginate, and calcium carbonate. The role of each key fabrication step, including ice-templating, calcium crosslinking, solvent dehydration, freeze-drying, and silanization, played in the material properties was also elucidated. The optimized bio-aerogels had a low density (7.55 mg/cm3), high porosity (99.47%), large specific surface area (39 m2/g), and strong hydrophobicity (water contact angle of 135°). In addition, the bio-aerogels exhibited outstanding selective oil separation ability towards the oil-water mixture, with oil sorption capacity of 89-126 times its weight. The in-situ calcium crosslinking and solvent dehydration were vital to create porosity and preserve the microstructure of the bio-aerogels. The chemical vapor deposition rendered the bio-aerogels hydrophobic and oleophilic, greatly enhancing the separability of oil from the water-oil mixture.
Collapse
Affiliation(s)
- Rongchuan Ye
- Key Laboratory for Water Quality and Conservation of the Pearl River Delta, Ministry of Education, School of Environmental Science and Engineering, Guangzhou University, Guangzhou 510006, China
| | - Jianyou Long
- Key Laboratory for Water Quality and Conservation of the Pearl River Delta, Ministry of Education, School of Environmental Science and Engineering, Guangzhou University, Guangzhou 510006, China
| | - Dan Peng
- Department of Transportation and Environment, Shenzhen Institute of Information Technology, Shenzhen 518172, China
| | - Yuqi Wang
- Key Laboratory for Water Quality and Conservation of the Pearl River Delta, Ministry of Education, School of Environmental Science and Engineering, Guangzhou University, Guangzhou 510006, China.
| | - Gaosheng Zhang
- Key Laboratory for Water Quality and Conservation of the Pearl River Delta, Ministry of Education, School of Environmental Science and Engineering, Guangzhou University, Guangzhou 510006, China
| | - Guicong Xiao
- Key Laboratory for Water Quality and Conservation of the Pearl River Delta, Ministry of Education, School of Environmental Science and Engineering, Guangzhou University, Guangzhou 510006, China
| | - Yijie Zheng
- Key Laboratory for Water Quality and Conservation of the Pearl River Delta, Ministry of Education, School of Environmental Science and Engineering, Guangzhou University, Guangzhou 510006, China
| | - Tangfu Xiao
- Key Laboratory for Water Quality and Conservation of the Pearl River Delta, Ministry of Education, School of Environmental Science and Engineering, Guangzhou University, Guangzhou 510006, China
| | - Yixing Wen
- Yunfu Institute of Cooperative Innovation of Circular Economy Industrial Park, Yunfu 527300, Guangdong Province, China
| | - Jiawen Li
- Guangdong BYtest Testing technology Co. LTD, Guangzhou 510006, China
| | - Huosheng Li
- Key Laboratory for Water Quality and Conservation of the Pearl River Delta, Ministry of Education, School of Environmental Science and Engineering, Guangzhou University, Guangzhou 510006, China.
| |
Collapse
|
|
3
|
Han K, Li X, Zhang Y, He Y, Hu R, Lu X, Li Q, Hui J. Chia Seed Oil Prevents High Fat Diet Induced Hyperlipidemia and Oxidative Stress in Mice. EUR J LIPID SCI TECH 2020. [DOI: 10.1002/ejlt.201900443] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Kai Han
- School of Life Science Liaoning University Shenyang 110036 China
| | - Xin‐Yang Li
- Qinhuangdao Marine Environmental Monitoring Central Station SOA Qinhuangdao 066002 China
| | - Ye‐Qi Zhang
- School of Life Science Liaoning University Shenyang 110036 China
| | - Yong‐Lin He
- College of Food Science Southwest University Chongqing 400715 China
| | - Rui Hu
- Analytical Center Shenyang Agricultural University Shenyang 110866 China
| | - Xiu‐Li Lu
- School of Life Science Liaoning University Shenyang 110036 China
| | - Qi‐Jiu Li
- School of Life Science Liaoning University Shenyang 110036 China
| | - Jing Hui
- School of Life Science Liaoning University Shenyang 110036 China
| |
Collapse
|
|
4
|
Anti-Oxidant and Anti-Melanogenic Properties of Essential Oil from Peel of Pomelo cv. Guan Xi. Molecules 2019; 24:molecules24020242. [PMID: 30634693 PMCID: PMC6359654 DOI: 10.3390/molecules24020242] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2018] [Revised: 01/04/2019] [Accepted: 01/07/2019] [Indexed: 11/17/2022] Open
Abstract
Here, we investigated the anti-oxidant and anti-melanogenic effects of pomelo peel essential oil (PPEO) from pomelo cv. Guan Xi. The volatile chemical composition of PPEO was analyzed with gas chromatography–mass spectrometry (GC/MS). The most abundant component of PPEO was limonene (55.92%), followed by β-myrcene (31.17%), and β-pinene (3.16%). PPEO showed strong anti-oxidant activities against 2,2-diphenyl-2-picryhydrazyl (DPPH), 2,2′-azinobis-(3-ethylbenzthiazoline-6-sulphonate (ABTS) and superoxide anion free radicals. Based on the B16 melanoma cell system, the effects of PPEO on the viability and morphology of B16 cells and the production of melanin were evaluated. The results revealed that PPEO at concentrations below 50 μg/mL could decrease the melanin content without affecting cell viability and morphology. Intracellular tyrosinase (TYR) activity and Western blot analysis showed that PPEO could down-regulate the expression level of TYR in B16 cells and dose-dependently inhibit TYR activity (by a maximum of 64.54%). In conclusion, PPEO has good anti-oxidant and anti-melanogenic activity, and thus can be widely used as a natural antioxidant in the food, pharmaceutical, and cosmetic industries.
Collapse
|