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Lia F, Attard K. Bioactive Potential of Olive Mill Waste Obtained from Cultivars Grown in the Island of Malta. Foods 2024; 13:1152. [PMID: 38672825 PMCID: PMC11049450 DOI: 10.3390/foods13081152] [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: 03/07/2024] [Revised: 04/03/2024] [Accepted: 04/05/2024] [Indexed: 04/28/2024] Open
Abstract
This study explores the bioactive potential of olive mill waste derived from cultivars grown in the Maltese Islands through various analytical approaches. Cell culture, cell staining, allelopathic assays, shrimp brine lethality assays, and HPLC analysis were conducted to assess the efficacy and bioactivity of the extracts using different treatments, including methanolic extraction, acid, and alkaline hydrolysis. Notably, the results from cell lines revealed that NB4r2 cells exhibited high susceptibility to the tested extracts, with the lowest IC50 recorded after 72 h of exposure. Notably, the 'Bajda' cultivar displayed the most effectiveness, particularly with acid hydrolysis. In allelopathic assays, higher concentrations of 'Malti', 'Bidni', and 'Bajda' extracts significantly inhibited lettuce seed germination. Similarly, in the brine shrimp lethality assay, higher concentrations led to increased mortality rates of Artemia salina, though rates decreased at lower concentrations. The identification of phenolic compounds found in olive mill waste was conducted using high-performance liquid chromatography (HPLC) with the use of internal standards. The identification revealed a variety of compounds, with 3-hydroxytyrosol and oleacein being present in high abundance in nearly all hydrolyzed and methanolic extracts, whereas gallic acid was found to be the least abundant. These findings highlight the rich bioactive potential of olive mill waste and provide insights into its applications in pharmaceuticals, nutraceuticals, and agriculture, emphasizing the importance of further research to fully exploit these valuable resources.
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Affiliation(s)
- Frederick Lia
- Institute of Applied Science, Malta College of Arts, Science and Technology, PLA 9032 Paola, Malta;
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Gomes Souza F, Bhansali S, Pal K, Silveira Maranhão FD, Santos Oliveira M, Valladão VS, Brandão E Silva DS, Silva GB. A 30-Year Review on Nanocomposites: Comprehensive Bibliometric Insights into Microstructural, Electrical, and Mechanical Properties Assisted by Artificial Intelligence. MATERIALS (BASEL, SWITZERLAND) 2024; 17:1088. [PMID: 38473560 DOI: 10.3390/ma17051088] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/31/2023] [Revised: 02/18/2024] [Accepted: 02/22/2024] [Indexed: 03/14/2024]
Abstract
From 1990 to 2024, this study presents a groundbreaking bibliometric and sentiment analysis of nanocomposite literature, distinguishing itself from existing reviews through its unique computational methodology. Developed by our research group, this novel approach systematically investigates the evolution of nanocomposites, focusing on microstructural characterization, electrical properties, and mechanical behaviors. By deploying advanced Boolean search strategies within the Scopus database, we achieve a meticulous extraction and in-depth exploration of thematic content, a methodological advancement in the field. Our analysis uniquely identifies critical trends and insights concerning nanocomposite microstructure, electrical attributes, and mechanical performance. The paper goes beyond traditional textual analytics and bibliometric evaluation, offering new interpretations of data and highlighting significant collaborative efforts and influential studies within the nanocomposite domain. Our findings uncover the evolution of research language, thematic shifts, and global contributions, providing a distinct and comprehensive view of the dynamic evolution of nanocomposite research. A critical component of this study is the "State-of-the-Art and Gaps Extracted from Results and Discussions" section, which delves into the latest advancements in nanocomposite research. This section details various nanocomposite types and their properties and introduces novel interpretations of their applications, especially in nanocomposite films. By tracing historical progress and identifying emerging trends, this analysis emphasizes the significance of collaboration and influential studies in molding the field. Moreover, the "Literature Review Guided by Artificial Intelligence" section showcases an innovative AI-guided approach to nanocomposite research, a first in this domain. Focusing on articles from 2023, selected based on citation frequency, this method offers a new perspective on the interplay between nanocomposites and their electrical properties. It highlights the composition, structure, and functionality of various systems, integrating recent findings for a comprehensive overview of current knowledge. The sentiment analysis, with an average score of 0.638771, reflects a positive trend in academic discourse and an increasing recognition of the potential of nanocomposites. Our bibliometric analysis, another methodological novelty, maps the intellectual domain, emphasizing pivotal research themes and the influence of crosslinking time on nanocomposite attributes. While acknowledging its limitations, this study exemplifies the indispensable role of our innovative computational tools in synthesizing and understanding the extensive body of nanocomposite literature. This work not only elucidates prevailing trends but also contributes a unique perspective and novel insights, enhancing our understanding of the nanocomposite research field.
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Affiliation(s)
- Fernando Gomes Souza
- Biopolymers & Sensors Lab., Instituto de Macromoléculas Professora Eloisa Mano, Universidade Federal do Rio de Janeiro, Centro de Tecnologia-Cidade Universitária, Rio de Janeiro 21941-853, Brazil
- Programa de Engenharia da Nanotecnologia, Instituto Alberto Luiz Coimbra de Pós-Graduação e Pesquisa de Engenharia (COPPE), Universidade Federal do Rio de Janeiro, Centro de Tecnologia-Cidade Universitária, Rio de Janeiro 21941-914, Brazil
| | - Shekhar Bhansali
- Biomolecular Sciences Institute, College of Engineering & Computing, Center for Aquatic Chemistry and Environment, Florida International University, 10555 West Flagler St EC3900, Miami, FL 33174, USA
| | - Kaushik Pal
- Department of Physics, University Center for Research and Development (UCRD), Chandigarh University, Mohali 140413, Punjab, India
| | - Fabíola da Silveira Maranhão
- Biopolymers & Sensors Lab., Instituto de Macromoléculas Professora Eloisa Mano, Universidade Federal do Rio de Janeiro, Centro de Tecnologia-Cidade Universitária, Rio de Janeiro 21941-853, Brazil
| | - Marcella Santos Oliveira
- Biopolymers & Sensors Lab., Instituto de Macromoléculas Professora Eloisa Mano, Universidade Federal do Rio de Janeiro, Centro de Tecnologia-Cidade Universitária, Rio de Janeiro 21941-853, Brazil
| | - Viviane Silva Valladão
- Biopolymers & Sensors Lab., Instituto de Macromoléculas Professora Eloisa Mano, Universidade Federal do Rio de Janeiro, Centro de Tecnologia-Cidade Universitária, Rio de Janeiro 21941-853, Brazil
| | - Daniele Silvéria Brandão E Silva
- Programa de Engenharia da Nanotecnologia, Instituto Alberto Luiz Coimbra de Pós-Graduação e Pesquisa de Engenharia (COPPE), Universidade Federal do Rio de Janeiro, Centro de Tecnologia-Cidade Universitária, Rio de Janeiro 21941-914, Brazil
| | - Gabriel Bezerra Silva
- Biopolymers & Sensors Lab., Instituto de Macromoléculas Professora Eloisa Mano, Universidade Federal do Rio de Janeiro, Centro de Tecnologia-Cidade Universitária, Rio de Janeiro 21941-853, Brazil
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Abd-Alrahman AM, Ramadan MM, Maraay MF, Salem R, Saleh FM, Hashim MA, Zhernyakova A, El-Messery TM. Production of natural flavor compounds using Bacillus subtilis-fermented soybean meal extract and their biological potential: a comprehensive in vitro study. Front Nutr 2024; 10:1280209. [PMID: 38299181 PMCID: PMC10829107 DOI: 10.3389/fnut.2023.1280209] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2023] [Accepted: 12/27/2023] [Indexed: 02/02/2024] Open
Abstract
This study aims to investigate the production of natural flavor compounds through the utilization of Bacillus subtilis-fermented soybean meal extract and evaluate their biological potential. The experiment involved a comprehensive in vitro investigation to assess the capabilities and effects of the produced flavor compounds. The resulting flavor compounds were subjected to various in vitro tests to assess their properties, including cytotoxicity, antioxidant activity, anticancer potential, antiviral activity, and antimicrobial activity. To enhance the fermentation process, soybean meal extract was fortified with a combination of L-Lysine and L-Threonine. Gas chromatography-mass spectrometry (GC/MS) analysis was conducted on the fermented soybean meal using two strains of Bacillus subtilis, namely NRCH123 and NRCZ144. This analysis revealed the presence of various volatile compounds in all extracts, including Butylated hydroxytoluene. The fermented soybean extract with bacillus subtilis NRCZ144 (B2) fortified with a combination of 2.5% (w/w) L-Lysine and 2.5% w/w L-threonine (SLT2) exhibited a rich profile of flavor compounds, with Eucalyptol being identified as the predominant compound. The antioxidant activity of the SLT2 extract was found to be 72.04% at a concentration of 100 μg/mL, indicating significant antioxidant potential. Furthermore, when tested against the human liver cancer cell line HepG2, the extract demonstrated anticancer activity with an IC50 value of 2.26 μg/mL. The extract exhibited potent cytotoxicity, with an IC50 value of 1.02 μg/mL. Importantly, the SLT2 extract displayed strong antibacterial and antifungal activity, even at very low concentrations. The extract's antimicrobial properties indicate its potential for inhibiting the growth of bacteria and fungi.
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Affiliation(s)
- Abeer M. Abd-Alrahman
- Department Food Science and Technology, Faculty of Home Economics, Al-Azhar University, Tanta, Egypt
| | - Manal M. Ramadan
- Department Chemistry of Flavor and Aroma, Food Industry and Nutrition, National Research Centre, Cairo, Egypt
| | | | - Rabab Salem
- Department Food Science and Technology, Faculty of Home Economics, Al-Azhar University, Tanta, Egypt
| | - Fatma M. Saleh
- Department Food Science and Technology, Faculty of Home Economics, Al-Azhar University, Tanta, Egypt
| | - Mahmood A Hashim
- International Research Centre “Biotechnologies of the Third Millennium,” Faculty of Biotechnologies (BioTech), ITMO University, Saint Petersburg, Russia
- Agricultural Research Center, Food Technology Research Institute, Giza, Egypt
- Department of Food and Nutrition, Faculty of Agriculture and Forestry, University of Helsinki, Helsinki, Finland
| | - Anastasia Zhernyakova
- International Research Centre “Biotechnologies of the Third Millennium,” Faculty of Biotechnologies (BioTech), ITMO University, Saint Petersburg, Russia
| | - Tamer M. El-Messery
- International Research Centre “Biotechnologies of the Third Millennium,” Faculty of Biotechnologies (BioTech), ITMO University, Saint Petersburg, Russia
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Schiano E, Novellino E, Gámez Fernández MM, Tiekou Lorinczova H, Tenore GC, Iannuzzo F, Patel VB, Somavarapu S, Zariwala MG. Antioxidant and Antidiabetic Properties of a Thinned-Nectarine-Based Nanoformulation in a Pancreatic β-Cell Line. Antioxidants (Basel) 2023; 13:63. [PMID: 38247487 PMCID: PMC10812739 DOI: 10.3390/antiox13010063] [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: 11/14/2023] [Revised: 12/19/2023] [Accepted: 12/28/2023] [Indexed: 01/23/2024] Open
Abstract
Pancreatic β-cells play a crucial role in maintaining glucose homeostasis, although they are susceptible to oxidative damage, which can ultimately impair their functionality. Thinned nectarines (TNs) have gained increasing interest due to their high polyphenol and abscisic acid (ABA) content, both of which possess antidiabetic properties. Nevertheless, the efficacy of these bioactive compounds may be compromised by limited stability and bioavailability in vivo. This study aimed to develop nanoformulations (NFs) containing pure ABA or a TN extract (TNE) at an equivalent ABA concentration. Subsequently, the insulinotropic and antioxidant potential of the NFs and their unformulated (free) forms were compared in MIN-6 pancreatic cells exposed to varying glucose (5.5 mM and 20 mM) and iron (100 µM) concentrations. NF-TNE treatment exhibited enhanced antioxidant activity compared to free TNE, while ABA-based groups showed no significant antioxidant activity. Moreover, MIN6 cells incubated with both high glucose and iron levels demonstrated significantly higher insulin AUC levels after treatment with all samples, with NF-TNE displaying the most pronounced effect. In conclusion, these results highlight the additional beneficial potential of TNE due to the synergistic combination of bioactive compounds and demonstrate the significant advantage of using a nanoformulation approach to further increase the benefits of this and similar phytobioactive molecules.
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Affiliation(s)
- Elisabetta Schiano
- Department of Pharmacy, University of Naples Federico II, via Domenico Montesano 59, 80131 Naples, Italy; (E.S.); (G.C.T.); (F.I.)
- Healthcare Food Research Center, Inventia Biotech s.r.l., Strada Statale Sannitica KM 20.700, 81020 Caserta, Italy
| | - Ettore Novellino
- Department of Medicine and Surgery, Catholic University of the Sacred Heart, 00168 Rome, Italy;
| | - Marta María Gámez Fernández
- Centre for Nutraceuticals, School of Life Sciences, University of Westminster, 115 New Cavendish Street, London W1W 6UW, UK; (M.M.G.F.); (H.T.L.); (V.B.P.)
| | - Helena Tiekou Lorinczova
- Centre for Nutraceuticals, School of Life Sciences, University of Westminster, 115 New Cavendish Street, London W1W 6UW, UK; (M.M.G.F.); (H.T.L.); (V.B.P.)
| | - Gian Carlo Tenore
- Department of Pharmacy, University of Naples Federico II, via Domenico Montesano 59, 80131 Naples, Italy; (E.S.); (G.C.T.); (F.I.)
| | - Fortuna Iannuzzo
- Department of Pharmacy, University of Naples Federico II, via Domenico Montesano 59, 80131 Naples, Italy; (E.S.); (G.C.T.); (F.I.)
| | - Vinood B. Patel
- Centre for Nutraceuticals, School of Life Sciences, University of Westminster, 115 New Cavendish Street, London W1W 6UW, UK; (M.M.G.F.); (H.T.L.); (V.B.P.)
| | - Satyanarayana Somavarapu
- Department of Pharmaceutics, UCL School of Pharmacy, 29-39 Brunswick Square, London WC1N 1AX, UK;
| | - Mohammed Gulrez Zariwala
- Centre for Nutraceuticals, School of Life Sciences, University of Westminster, 115 New Cavendish Street, London W1W 6UW, UK; (M.M.G.F.); (H.T.L.); (V.B.P.)
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Mouro C, Gomes AP, Gouveia IC. From Hemp Waste to Bioactive Nanofiber Composites: Deep Eutectic Solvents and Electrospinning in Upcycling Endeavors. Gels 2023; 10:1. [PMID: 38275839 PMCID: PMC10815441 DOI: 10.3390/gels10010001] [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: 11/27/2023] [Revised: 12/11/2023] [Accepted: 12/16/2023] [Indexed: 01/27/2024] Open
Abstract
Natural fibers have attracted increasing interest as an alternative to produce environmentally friendly and sustainable materials. Particularly, hemp fibers have been widely used in various industrial applications due to their extremely unique properties. However, hemp can generate a large amount of agro-waste, and it results in an attractive source of biopolymers for the development of low-cost materials as an alternative to the raw materials and conventional petroleum-based plastics. In addition, deep eutectic solvents (DESs), a new type of truly green solvents, have been shown to remove gums, lignin, and other non-cellulosic components from hemp fibers. Reusing these components dissolved into the DESs to fabricate new materials directly by electrospinning is a very attractive but still unexplored endeavor. Thus, this innovative research to venture new upcycling pathways is focused on the fabrication of composite nanofibers by electrospinning of a gel-based blend of Poly(vinyl alcohol) (PVA) and hemp agro-waste (HW) dissolved into choline chloride (ChCl):Glycerol (1:2) and ChCl:Urea (1:2) DES mixtures. The results obtained revealed that the produced nanofibers displayed uniform appearance with diameters ranging from 257.7 ± 65.6 nm to 380.8 ± 134.0 nm. In addition, the mechanical properties of the electrospun composite nanofibers produced from the gel-based blends of HW dissolved in DESs and PVA (HW-DESs_PVA) were found to be superior, resulting in an enhanced tensile strength and Young's modulus. Furthermore, the incorporation of HW into the nanofibers was able to provide bioactive antioxidant and antibacterial properties. Overall, this study demonstrated a promising, more sustainable, and eco-friendly way to produce electrospun composite nanofibers using HW in a circular economy perspective.
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Affiliation(s)
| | | | - Isabel C. Gouveia
- FibEnTech Research Unit, Faculty of Engineering, University of Beira Interior, 6200-001 Covilhã, Portugal; (C.M.); (A.P.G.)
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Bala S, Garg D, Phutela UG, Kaur M, Bhatia S. Oscillatoria sancta Cultivation Using Fruit and Vegetable Waste Formulated Media and Its Potential as a Functional Food: Assessment of Cultivation Optimization. Mol Biotechnol 2023:10.1007/s12033-023-00883-z. [PMID: 37794216 DOI: 10.1007/s12033-023-00883-z] [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: 04/30/2023] [Accepted: 08/17/2023] [Indexed: 10/06/2023]
Abstract
The most cost-effective technique to cultivate microalgae is with low-cost resources, like fruit and vegetable peels. This study examined the viability of culturing microalgae (Oscillatoria sancta PCC 7515) isolated from a waterlogged region of Punjab, India, in a low-cost medium (fruit and vegetable waste peels) for pharmaceutical use. 16S rRNA sequencing discovered O. sancta PCC 7515. Fruit and vegetable peels were mineralized and chemically analyzed. At a 5% Bacillus flexus concentration, fruit and vegetable peels were liquefied at room temperature for 24 h. Response Surface Methodology (RSM) was used to assess and improve important cultural variables. The RSM predicted the best results at 10 pH, 30 days of incubation, 5% inoculum concentration, and 5% fruit and vegetable waste liquid leachate. The optimum conditions yielded more biomass than the basal conditions (0.8001 g/L). O. sancta PCC 7515 produced more lipids, proteins, Chl a, and Chl b in a formulated alternate medium than standard media. This study shows that O. sancta PCC 7515 may thrive on fruit and vegetable peel media. Fruit and vegetable waste (FVW) media assure low-cost microalgae-based functional foods.
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Affiliation(s)
- Saroj Bala
- Department of Microbiology, Punjab Agricultural University, Ludhiana, 141004, India.
| | - Diksha Garg
- Department of Microbiology, Punjab Agricultural University, Ludhiana, 141004, India
| | - Urmila Gupta Phutela
- Department of Renewable Energy and Engineering, Punjab Agricultural University, Ludhiana, 141004, India.
| | - Manpreet Kaur
- Department of Biochemistry, Punjab Agricultural University, Ludhiana, 141004, India
| | - Surekha Bhatia
- Department of Food Processing & Food Engineering, Punjab Agricultural University, Ludhiana, 141004, India
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Sridhar K, Sharma M, Stephen Inbaraj B. Editorial: Valorization of food and agro-industrial waste: novel approaches and their applications. Front Nutr 2023; 10:1250816. [PMID: 37521423 PMCID: PMC10374207 DOI: 10.3389/fnut.2023.1250816] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2023] [Accepted: 07/04/2023] [Indexed: 08/01/2023] Open
Affiliation(s)
- Kandi Sridhar
- Department of Food Technology, Karpagam Academy of Higher Education, Coimbatore, India
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Enhancement of bioactives, functional and nutraceutical attributes of banana peels and de-oiled groundnut cake through submerged fermentation employing Calocybe indica. FOOD BIOSCI 2023. [DOI: 10.1016/j.fbio.2023.102530] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/16/2023]
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Yadav A, Yadav K, Ahmad R, Abd-Elsalam KA. Emerging Frontiers in Nanotechnology for Precision Agriculture: Advancements, Hurdles and Prospects. AGROCHEMICALS 2023; 2:220-256. [DOI: 10.3390/agrochemicals2020016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/01/2023]
Abstract
This review article provides an extensive overview of the emerging frontiers of nanotechnology in precision agriculture, highlighting recent advancements, hurdles, and prospects. The benefits of nanotechnology in this field include the development of advanced nanomaterials for enhanced seed germination and micronutrient supply, along with the alleviation of biotic and abiotic stress. Further, nanotechnology-based fertilizers and pesticides can be delivered in lower dosages, which reduces environmental impacts and human health hazards. Another significant advantage lies in introducing cutting-edge nanodiagnostic systems and nanobiosensors that monitor soil quality parameters, plant diseases, and stress, all of which are critical for precision agriculture. Additionally, this technology has demonstrated potential in reducing agro-waste, synthesizing high-value products, and using methods and devices for tagging, monitoring, and tracking agroproducts. Alongside these developments, cloud computing and smartphone-based biosensors have emerged as crucial data collection and analysis tools. Finally, this review delves into the economic, legal, social, and risk implications of nanotechnology in agriculture, which must be thoroughly examined for the technology’s widespread adoption.
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Affiliation(s)
- Anurag Yadav
- Department of Microbiology, College of Basic Science and Humanities, Sardarkrushinagar Dantiwada Agricultural University, Sardarkrushinagar, District Banaskantha, Gujarat 385506, India
| | - Kusum Yadav
- Department of Biochemistry, University of Lucknow, Lucknow 226007, India
| | - Rumana Ahmad
- Department of Biochemistry, Era University, Lucknow 226003, India
| | - Kamel A. Abd-Elsalam
- Plant Pathology Research Institute, Agricultural Research Center, Giza 12619, Egypt
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Sridhar K, Usmani Z, Sharma M. Bioactive Formulations in Agri-Food-Pharma: Source and Applications. Bioengineering (Basel) 2023; 10:bioengineering10020191. [PMID: 36829685 PMCID: PMC9951862 DOI: 10.3390/bioengineering10020191] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2023] [Accepted: 02/01/2023] [Indexed: 02/05/2023] Open
Abstract
Bioactive compounds are the secondary metabolites produced by the plant cell through numerous metabolic pathways [...].
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Affiliation(s)
- Kandi Sridhar
- Department of Food Technology, Karpagam Academy of Higher Education (Deemed to be University), Coimbatore 641021, India
- Correspondence: (K.S.); (M.S.)
| | - Zeba Usmani
- Department of Applied Biology, University of Science and Technology, Meghalaya 793101, India
| | - Minaxi Sharma
- Haute Ecole Provinciale de Hainaut-Condorcet, 7800 Ath, Belgium
- Correspondence: (K.S.); (M.S.)
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