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Munir H, Yaqoob S, Awan KA, Imtiaz A, Naveed H, Ahmad N, Naeem M, Sultan W, Ma Y. Unveiling the Chemistry of Citrus Peel: Insights into Nutraceutical Potential and Therapeutic Applications. Foods 2024; 13:1681. [PMID: 38890908 PMCID: PMC11172398 DOI: 10.3390/foods13111681] [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: 04/11/2024] [Revised: 05/18/2024] [Accepted: 05/22/2024] [Indexed: 06/20/2024] Open
Abstract
The recent millennium has witnessed a notable shift in consumer focus towards natural products for addressing lifestyle-related disorders, driven by their safety and cost-effectiveness. Nutraceuticals and functional foods play an imperative role by meeting nutritional needs and offering medicinal benefits. With increased scientific knowledge and awareness, the significance of a healthy lifestyle, including diet, in reducing disease risk is widely acknowledged, facilitating access to a diverse and safer diet for longevity. Plant-based foods rich in phytochemicals are increasingly popular and effectively utilized in disease management. Agricultural waste from plant-based foods is being recognized as a valuable source of nutraceuticals for dietary interventions. Citrus peels, known for their diverse flavonoids, are emerging as a promising health-promoting ingredient. Globally, citrus production yields approximately 15 million tons of by-products annually, highlighting the substantial potential for utilizing citrus waste in phyto-therapeutic and nutraceutical applications. Citrus peels are a rich source of flavonoids, with concentrations ranging from 2.5 to 5.5 g/100 g dry weight, depending on the citrus variety. The most abundant flavonoids in citrus peel include hesperidin and naringin, as well as essential oils rich in monoterpenes like limonene. The peel extracts exhibit high antioxidant capacity, with DPPH radical scavenging activities ranging from 70 to 90%, comparable to synthetic antioxidants like BHA and BHT. Additionally, the flavonoids present in citrus peel have been found to have antioxidant properties, which can help reduce oxidative stress by 30% and cardiovascular disease by 25%. Potent anti-inflammatory effects have also been demonstrated, reducing inflammatory markers such as IL-6 and TNF-α by up to 40% in cell culture studies. These findings highlight the potential of citrus peel as a valuable source of nutraceuticals in diet-based therapies.
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Affiliation(s)
- Hussan Munir
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, China; (H.M.); (S.Y.)
- University Institute of Food Science and Technology, University of Lahore, Lahore 54590, Pakistan
| | - Sanabil Yaqoob
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, China; (H.M.); (S.Y.)
- Department of Food Science and Technology, Faculty of Science and Technology, University of Central Punjab, Lahore 54000, Pakistan; (K.A.A.); (H.N.); (W.S.)
| | - Kanza Aziz Awan
- Department of Food Science and Technology, Faculty of Science and Technology, University of Central Punjab, Lahore 54000, Pakistan; (K.A.A.); (H.N.); (W.S.)
| | - Aysha Imtiaz
- National Institute of Food Science and Technology, University of Agriculture, Faisalabad 03802, Pakistan;
| | - Hiba Naveed
- Department of Food Science and Technology, Faculty of Science and Technology, University of Central Punjab, Lahore 54000, Pakistan; (K.A.A.); (H.N.); (W.S.)
| | - Naveed Ahmad
- Joint Center for Single Cell Biology, Shanghai Collaborative Innovation Center of Agri-Seeds, School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai 200240, China;
| | - Muhammad Naeem
- Department of Plant Science, School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai 200240, China;
| | - Waleed Sultan
- Department of Food Science and Technology, Faculty of Science and Technology, University of Central Punjab, Lahore 54000, Pakistan; (K.A.A.); (H.N.); (W.S.)
| | - Yongkun Ma
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, China; (H.M.); (S.Y.)
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Jiang G, Ramachandraiah K, Tan C, Cai N, Ameer K, Feng X. Modification of Ginseng Insoluble Dietary Fiber by Enzymatic Method: Structural, Rheological, Thermal and Functional Properties. Foods 2023; 12:2809. [PMID: 37509900 PMCID: PMC10379364 DOI: 10.3390/foods12142809] [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: 07/05/2023] [Revised: 07/18/2023] [Accepted: 07/20/2023] [Indexed: 07/30/2023] Open
Abstract
In this study, the effects of enzymatic modification using cellulase/xylanase on the composition and structural and functional properties of ginseng insoluble dietary fiber (G-IDF) were evaluated. Fourier transform infrared spectroscopy and scanning electron microcopy showed that enzymatic extraction treatment caused obvious structural alterations in ginseng-modified (G-MIDF) samples, which exhibited more porous and completely wrinkled surfaces. Comparing the peak morphology of G-MIDF with untreated IDF using X-ray diffractometry, the G-MIDF sample exhibited split peaks at a 2θ angle of 23.71°, along with the emergence of sharp peaks at 28.02°, 31.78°, and 35.07°. Thermo-gravimetric analysis showed that G-MIDF exhibited a specified range of pyrolysis temperature and is suitable for food applications involving processing at temperatures below 300 °C. Overall, it was evident from rheograms that both G-IDF and G-MIDF exhibited a resemblance with respect to viscosity changes as a function of the shear rate. Enzymatic treatment led to significant (p < 0.05) improvement in water holding, oil retention, water swelling, nitrite ion binding, bile acid binding, cholesterol absorption, and glucose absorption capacities.
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Affiliation(s)
- Guihun Jiang
- School of Public Health, Jilin Medical University, Jilin 132013, China
| | | | - Chaoyi Tan
- School of Public Health, Jilin Medical University, Jilin 132013, China
| | - Nanjie Cai
- School of Public Health, Jilin Medical University, Jilin 132013, China
| | - Kashif Ameer
- Institute of Food Science and Nutrition, University of Sargodha, Sargodha 40100, Pakistan
| | - Xiaoyu Feng
- School of Public Health, Jilin Medical University, Jilin 132013, China
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Vilas-Franquesa A, Casertano M, Tresserra-Rimbau A, Vallverdú-Queralt A, Torres-León C. Recent advances in bio-based extraction processes for the recovery of bound phenolics from agro-industrial by-products and their biological activity. Crit Rev Food Sci Nutr 2023:1-25. [PMID: 37366277 DOI: 10.1080/10408398.2023.2227261] [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: 06/28/2023]
Abstract
Usually found bound to other complex molecules (e.g., lignin, hemicellulose), phenolic compounds (PC) are widely present in agro-industrial by-products, and their extraction is challenging. In recent times, research is starting to highlight the bioactive roles played by bound phenolics (BPC) in human health. This review aims at providing a critical update on recent advances in green techniques for the recovery of BPC, focusing on enzymatic-assisted (EAE) and fermentation-assisted extraction (FAE) as well as in the combination of technologies, showing variable yield and features. The present review also summarizes the most recent biological activities attributed to BPC extracts until now. The higher antioxidant activity of BPC-compared to FPC-coupled with their affordable by-product source make them medicinally potent and economically viable, promoting their integral upcycling and generating new revenue streams, business, and employment opportunities. In addition, EAE and FAE can have a biotransformative effect on the PC itself or its moiety, leading to improved extraction outcomes. Moreover, recent research on BPC extracts has reported promising anti-cancer and anti-diabetic activity. Yet further research is needed to elucidate their biological mechanisms and exploit the true potential of their applications in terms of new food products or ingredient development for human consumption.
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Affiliation(s)
- Arnau Vilas-Franquesa
- Food Quality and Design Group, Department of Agrotechnology and Food Sciences, Wageningen University and Research Centre, Wageningen, The Netherlands
- Departament de Ciència Animal i dels Aliments, Universitat Autònoma de Barcelona, Bellaterra, Spain, Bellaterra, Spain
| | - Melania Casertano
- Food Quality and Design Group, Department of Agrotechnology and Food Sciences, Wageningen University and Research Centre, Wageningen, The Netherlands
| | - Anna Tresserra-Rimbau
- Nutrition, Food Science and Gastronomy Department, XIA, Institute of Nutrition and Food Safety (INSA-UB), School of Pharmacy and Food Sciences, University of Barcelona, Barcelona, Spain
| | - Anna Vallverdú-Queralt
- Nutrition, Food Science and Gastronomy Department, XIA, Institute of Nutrition and Food Safety (INSA-UB), School of Pharmacy and Food Sciences, University of Barcelona, Barcelona, Spain
| | - Cristian Torres-León
- Reaserch Center and Ethnobiological Garden (CIJE), Universidad Autonoma de Coahuila, Unidad Torreón, Viesca, Coahuila, Mexico
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Effects of Dehydrated Moringa (Moringa oleifera) Leaf Powder Supplementation on Physicochemical, Antioxidant, Mineral, and Sensory Properties of Whole Wheat Flour Leavened Bread. J FOOD QUALITY 2023. [DOI: 10.1155/2023/4473000] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
Abstract
Moringa (Moringa oleifera) has excellent nutritional significance as well as medicinal and therapeutic benefits, such as antidiabetic, anticancer, antimicrobial, and antioxidant activities. Whole wheat flour (WWF) is associated with a reduced risk of cancer (colon cancer), constipation, obesity, cardiovascular diseases, and type 2 diabetes. In this regard, the objective of the study is to determine the chemical composition, nutritional value, and antioxidant activity of moringa leaves and their MLP containing snack food (bread) to make a strong recommendation for their consumption in a balanced diet. The present study was aimed at assessing the effects of dehydrated moringa leaf powder (MLP) supplementation at 0–10% MLP levels on proximate, antioxidant, mineral, and sensory quality attributes of WWF leavened bread. Further, these quality attributes for MLP and WWF were also analyzed individually. As compared to WWF, MLP exhibited significantly higher (
) antioxidant activities, such as DPPH activity (10.38 ± 0.25 μmol TE/g DW), FRAP activity (21.43 ± 0.08 μmol TE/g DW), and total phenolic content (2.33 ± 0.04 mg GAE/100 g DW). MLP-supplemented bread exhibited significantly improved proximate, antioxidant, and mineral profile. It was evident from the proximate and sensory analysis that there was significant improvement in the nutritional composition of MLP-supplemented leavened bread; however, the overall acceptability scores of WWF leavened bread showed gradually decreasing tendency with corresponding rises in the addition levels of MLP. Based on results, it was implied that maximum acceptability was exhibited by the sample T2 supplemented at MLP addition level of 5%. Moreover, the nutritional, mineral profile, and antioxidant profile of the supplemented bread were significantly improved owing to MLP addition, and it may be implied that MLP could be exploited for improving the nutritional status of people in underdeveloped and developing countries.
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Revitalizing Unfermented Cabernet Sauvignon Pomace Using an Eco-Friendly, Two-Stage Countercurrent Process: Role of pH on the Extractability of Bioactive Phenolics. Processes (Basel) 2022. [DOI: 10.3390/pr10102093] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
As the major byproduct of the winemaking industry, grape pomace remains an untapped source of valuable bioactive phenolic compounds. This study elucidated the optimal aqueous extraction parameters for maximizing phenolic extractability, while avoiding the use of harsh conventional solvents and limiting water usage, from Cabernet Sauvignon grape pomace in which the red grape was processed for white wine. In the single-stage aqueous extraction process (AEP), the concurrent impact of pH (2.64–9.36), solids-to-liquid ratio (SLR, g pomace/mL water) (1:50–1:5), and temperature (41.6–58.4 °C) on the total phenolic content (TPC) of Cabernet Sauvignon pomace was evaluated alongside a kinetic study (15–90 min). Optimal single-stage extraction conditions (pH 9.36, 1:50 SLR, 50 °C, 75 min) guided the development of a two-stage countercurrent extraction process (pH 9.36, 1:10 SLR, 50 °C, 75 min) to further reduce water consumption without compromising overall extractability. The countercurrent process reduced fresh water usage by 80%, increased the TPC of the extracts by 18%, and improved the in vitro antioxidant activities (ABTS and ORAC) of the extracts. Untargeted metabolomics enabled the identification of a diverse pool of phenolics, especially flavonol glycosides, associated with grape pomace, while further phenolic quantitation detected improvements in the release of commonly bound phenolics such as ferulic acid, p-coumaric acid, syringic acid, and protocatechuic acid in alkaline extracts compared to the ethanolic extract. This investigation provides an efficient, eco-friendly extraction strategy suitable for applications in functional food, beverage, nutraceutical, and cosmetic industries.
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