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Pinheiro Pantoja KR, Melo Aires GC, Ferreira CP, de Lima MDC, Menezes EGO, de Carvalho Junior RN. Supercritical Technology as an Efficient Alternative to Cold Pressing for Avocado Oil: A Comparative Approach. Foods 2024; 13:2424. [PMID: 39123615 PMCID: PMC11311359 DOI: 10.3390/foods13152424] [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: 06/21/2024] [Revised: 07/26/2024] [Accepted: 07/26/2024] [Indexed: 08/12/2024] Open
Abstract
Avocado oil is rich in nutrients beneficial to human health, such as monounsaturated fatty acids, phenolic compounds, tocopherol, and carotenoids, with numerous possibilities for application in industry. This review explores, through a comparative approach, the effectiveness of the supercritical oil extraction process as an alternative to the conventional cold-pressing method, evaluating the differences in the extraction process steps through the effect of temperature and operating pressure on bioactive quality and oil yield. The results reveal that supercritical avocado oil has a yield like that of mechanical cold pressing and superior functional and bioactive quality, especially in relation to α-tocopherol and carotenoids. For better use and efficiency of the supercritical technology, the maturation stage, moisture content, fruit variety, and collection period stand out as essential factors to be observed during pre-treatment, as they directly impact oil yield and nutrient concentration. In addition, the use of supercritical technology enables the full use of the fruit, significantly reducing waste, and adds value to the agro-industrial residues of the process. It produces an edible oil free of impurities, microorganisms, and organic solvents. It is a green, environmentally friendly technology with long-term environmental and economic advantages and an interesting alternative in the avocado market.
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Affiliation(s)
- Kelly Roberta Pinheiro Pantoja
- Program of Post-Graduation in Natural Resources Engineering in the Amazon (PRODERNA), Federal University of Pará, 01 Augusto Corrêa Street, Belém 66075110, PA, Brazil;
| | - Giselle Cristine Melo Aires
- Program of Post-Graduation in Food Science and Technology (PPGCTA), Federal University of Pará, 01 Augusto Corrêa Street, Belém 66075110, PA, Brazil;
| | - Clara Prestes Ferreira
- Food Science and Technology Laboratory (LCTEA), Federal University of Pará, 01 Augusto Corrêa Street, Belém 66075110, PA, Brazil; (C.P.F.); (M.d.C.d.L.)
| | - Matheus da Costa de Lima
- Food Science and Technology Laboratory (LCTEA), Federal University of Pará, 01 Augusto Corrêa Street, Belém 66075110, PA, Brazil; (C.P.F.); (M.d.C.d.L.)
| | - Eduardo Gama Ortiz Menezes
- Department of Chemical Engineering, Federal Institute of Education, Science and Technology of Rondônia (IFRO), 4985 Calama Avenue, Porto Velho 76820441, RO, Brazil;
| | - Raul Nunes de Carvalho Junior
- Program of Post-Graduation in Food Science and Technology, Program of Post-Graduation in Natural Resources Engineering in the Amazon, Federal University of Pará, 01 Augusto Corrêa Street, Belém 66075110, PA, Brazil
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Neves BB, Pinto S, Pais R, Batista J, Domingues MR, Melo T. Looking into the lipid profile of avocado and byproducts: Using lipidomics to explore value-added compounds. Compr Rev Food Sci Food Saf 2024; 23:e13351. [PMID: 38682674 DOI: 10.1111/1541-4337.13351] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2023] [Revised: 03/26/2024] [Accepted: 03/28/2024] [Indexed: 05/01/2024]
Abstract
Consumer priorities in healthy diets and lifestyle boosted the demand for nutritious and functional foods as well as plant-based ingredients. Avocado has become a food trend due to its nutritional and functional values, which in turn is increasing its consumption and production worldwide. Avocado edible portion has a high content of lipids, with the pulp and its oil being rich in monounsaturated fatty acids and essential omega - 3 and omega - 6 polyunsaturated fatty acids (PUFA). These fatty acids are mainly esterified in triacylglycerides, the major lipids in pulp, but also in minor components such as polar lipids (phospholipids and glycolipids). Polar lipids of avocado have been overlooked despite being recently highlighted with functional properties as well. The growth in the industry of avocado products is generating an increased amount of their byproducts, such as seed and peels (nonedible portions), still undervalued. The few studies on avocado byproducts pointed out that they also contain interesting lipids, with seeds particularly rich in polar lipids bearing PUFA, and thus can be reused as a source of add-value phytochemical. Mass spectrometry-based lipidomics approaches appear as an essential tool to unveil the complex lipid signature of avocado and its byproducts, contributing to the recognition of value-added lipids and opening new avenues for their use in novel biotechnological applications. The present review provides an up-to-date overview of the lipid signature from avocado pulp, peel, seed, and its oils.
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Affiliation(s)
- Bruna B Neves
- Mass Spectrometry Center, LAQV-REQUIMTE, Department of Chemistry, University of Aveiro, Santiago University Campus, Aveiro, Portugal
- CESAM-Centre for Environmental and Marine Studies, Department of Chemistry, University of Aveiro, Santiago University Campus, Aveiro, Portugal
| | - Sara Pinto
- Mass Spectrometry Center, LAQV-REQUIMTE, Department of Chemistry, University of Aveiro, Santiago University Campus, Aveiro, Portugal
- CESAM-Centre for Environmental and Marine Studies, Department of Chemistry, University of Aveiro, Santiago University Campus, Aveiro, Portugal
| | - Rita Pais
- Mass Spectrometry Center, LAQV-REQUIMTE, Department of Chemistry, University of Aveiro, Santiago University Campus, Aveiro, Portugal
- CESAM-Centre for Environmental and Marine Studies, Department of Chemistry, University of Aveiro, Santiago University Campus, Aveiro, Portugal
| | - Joana Batista
- Mass Spectrometry Center, LAQV-REQUIMTE, Department of Chemistry, University of Aveiro, Santiago University Campus, Aveiro, Portugal
- CESAM-Centre for Environmental and Marine Studies, Department of Chemistry, University of Aveiro, Santiago University Campus, Aveiro, Portugal
| | - M Rosário Domingues
- Mass Spectrometry Center, LAQV-REQUIMTE, Department of Chemistry, University of Aveiro, Santiago University Campus, Aveiro, Portugal
- CESAM-Centre for Environmental and Marine Studies, Department of Chemistry, University of Aveiro, Santiago University Campus, Aveiro, Portugal
| | - Tânia Melo
- Mass Spectrometry Center, LAQV-REQUIMTE, Department of Chemistry, University of Aveiro, Santiago University Campus, Aveiro, Portugal
- CESAM-Centre for Environmental and Marine Studies, Department of Chemistry, University of Aveiro, Santiago University Campus, Aveiro, Portugal
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Godoy Zúniga MM, Ding R, Oh E, Nguyen TB, Tran TT, Nam JD, Suhr J. Avocado seed starch utilized in eco-friendly, UV-blocking, and high-barrier polylactic acid (PLA) biocomposites for active food packaging applications. Int J Biol Macromol 2024; 265:130837. [PMID: 38503372 DOI: 10.1016/j.ijbiomac.2024.130837] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2024] [Revised: 02/22/2024] [Accepted: 03/11/2024] [Indexed: 03/21/2024]
Abstract
Efficient and effective use of biopolymers, such as starch, has increasingly prompted interest due to the current environmental challenges. However, starch-based composites still show poor ductility along with water and oxygen permeability, which may not meet the requirements for food packaging standards. In this study, modified starch (m-St), isolated from the avocado seed and synthesized with tert-butyl acetoacetate (t-BAA), was embedded into polylactic acid (PLA) to design new eco-friendly composites. The developed biocomposites were found to exhibit high performance with outstanding mechanical properties in conjunction with remarkable light, water vapor, and oxygen blocking features for food packaging applications. PLA/m-St(1:6) 20 wt% composites showed a dramatic increase in elongation at break (EB%) from 3.35 to 27.80 % (about 730 % enhancement) and exhibited remarkable UV-blocking performance from 16.21 to 83.86 % for UVB, relative to pure PLA. Equally importantly, these biocomposites revealed significant improvement in oxygen and water vapor barrier performance by reducing their values from 1331 to 32.9 cc m-2 day-1 (indicating a remarkable reduction of 97.53 %) and 61.9 to 28 g m-2 day-1, respectively. This study can show the great potential of extracting starch from biowaste resources and transforming it into sustainable bio-based composites as a promising solution for food packaging applications.
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Affiliation(s)
- Marcela María Godoy Zúniga
- Department of Polymer Science & Engineering, Sungkyunkwan University, 2066, Seoburo, Jangan-gu, Gyeonggi-do 16419, Republic of Korea
| | - Ruonan Ding
- Department of Energy Science, Sungkyunkwan University, 2066, Seoburo, Jangan-gu, Gyeonggi-do 16419, Republic of Korea; Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Laoshan District, Qingdao, Shandong, China, 266104
| | - Eunyoung Oh
- School of Mechanical Engineering, Sungkyunkwan University, 2066, Seoburo, Jangan-gu, Gyeonggi-do 16419, Republic of Korea
| | - Tan Binh Nguyen
- Department of Polymer Science & Engineering, Sungkyunkwan University, 2066, Seoburo, Jangan-gu, Gyeonggi-do 16419, Republic of Korea
| | - Trung Tien Tran
- School of Mechanical Engineering, Sungkyunkwan University, 2066, Seoburo, Jangan-gu, Gyeonggi-do 16419, Republic of Korea
| | - Jae-Do Nam
- Department of Polymer Science & Engineering, Sungkyunkwan University, 2066, Seoburo, Jangan-gu, Gyeonggi-do 16419, Republic of Korea; Department of Energy Science, Sungkyunkwan University, 2066, Seoburo, Jangan-gu, Gyeonggi-do 16419, Republic of Korea
| | - Jonghwan Suhr
- Department of Polymer Science & Engineering, Sungkyunkwan University, 2066, Seoburo, Jangan-gu, Gyeonggi-do 16419, Republic of Korea; School of Mechanical Engineering, Sungkyunkwan University, 2066, Seoburo, Jangan-gu, Gyeonggi-do 16419, Republic of Korea.
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Das A, Verma M, Mishra V. Food waste to resource recovery: a way of green advocacy. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2024; 31:17874-17886. [PMID: 37186182 DOI: 10.1007/s11356-023-27193-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/30/2022] [Accepted: 04/19/2023] [Indexed: 05/17/2023]
Abstract
Due to the massive growth in population and urbanization, there has been a huge increase in the volume of food waste globally. The Food and Agriculture Organization (FAO) has estimated that around one-third of all food produced each year is wasted. Food waste leads to the emission of greenhouse gas and depletion of the soil fertility. Nevertheless, it has immense potential for the recovery of high-value energy, fuel, and other resources. This review summarizes the latest advances in resource recovery from food waste by using technologies that include food waste-mediated microbial fuel cell (MFC) for bioenergy production. In addition to this, utilization of food waste for the production of bioplastic, biogas, bioethanol, and fertilizer has been also discussed in detail. Competitive benefits and accompanying difficulties of these technologies have also been highlighted. Furthermore, future approaches for more efficient use of food waste for the recovery of valuable resources have been also offered from an interdisciplinary perspective.
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Affiliation(s)
- Alok Das
- School of Biochemical Engineering, IIT (BHU), U.P, Varanasi, 221005, India
| | - Manisha Verma
- School of Biochemical Engineering, IIT (BHU), U.P, Varanasi, 221005, India
| | - Vishal Mishra
- School of Biochemical Engineering, IIT (BHU), U.P, Varanasi, 221005, India.
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Afraz MT, Xu X, Adil M, Manzoor MF, Zeng XA, Han Z, Aadil RM. Subcritical and Supercritical Fluids to Valorize Industrial Fruit and Vegetable Waste. Foods 2023; 12:2417. [PMID: 37372628 DOI: 10.3390/foods12122417] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2023] [Revised: 06/14/2023] [Accepted: 06/16/2023] [Indexed: 06/29/2023] Open
Abstract
The valorization of industrial fruit and vegetable waste has gained significant attention due to the environmental concerns and economic opportunities associated with its effective utilization. This review article comprehensively discusses the application of subcritical and supercritical fluid technologies in the valorization process, highlighting the potential benefits of these advanced extraction techniques for the recovery of bioactive compounds and unconventional oils from waste materials. Novel pressurized fluid extraction techniques offer significant advantages over conventional methods, enabling effective and sustainable processes that contribute to greener production in the global manufacturing sector. Recovered bio-extract compounds can be used to uplift the nutritional profile of other food products and determine their application in the food, pharmaceutical, and nutraceutical industries. Valorization processes also play an important role in coping with the increasing demand for bioactive compounds and natural substitutes. Moreover, the integration of spent material in biorefinery and biorefining processes is also explored in terms of energy generation, such as biofuels or electricity, thus showcasing the potential for a circular economy approach in the management of waste streams. An economic evaluation is presented, detailing the cost analysis and potential barriers in the implementation of these valorization strategies. The article emphasizes the importance of fostering collaboration between academia, industry, and policymakers to enable the widespread adoption of these promising technologies. This, in turn, will contribute to a more sustainable and circular economy, maximizing the potential of fruit and vegetable waste as a source of valuable products.
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Affiliation(s)
- Muhammad Talha Afraz
- School of Food Science and Engineering, South China University of Technology, Guangzhou 510641, China
- Yangjiang Research Institute, South China University of Technology, Yangjiang 529500, China
| | - Xindong Xu
- School of Food Science and Engineering, South China University of Technology, Guangzhou 510641, China
- Yangjiang Research Institute, South China University of Technology, Yangjiang 529500, China
- Guangdong Provincial Key Laboratory of Intelligent Food Manufacturing, Foshan University, Foshan 528225, China
| | - Muhammad Adil
- School of Food Science and Engineering, South China University of Technology, Guangzhou 510641, China
| | - Muhammad Faisal Manzoor
- School of Food Science and Engineering, South China University of Technology, Guangzhou 510641, China
- Guangdong Provincial Key Laboratory of Intelligent Food Manufacturing, Foshan University, Foshan 528225, China
- School of Food Science and Engineering, Foshan University, Foshan 528225, China
| | - Xin-An Zeng
- Yangjiang Research Institute, South China University of Technology, Yangjiang 529500, China
- Guangdong Provincial Key Laboratory of Intelligent Food Manufacturing, Foshan University, Foshan 528225, China
| | - Zhong Han
- School of Food Science and Engineering, South China University of Technology, Guangzhou 510641, China
- Guangdong Provincial Key Laboratory of Intelligent Food Manufacturing, Foshan University, Foshan 528225, China
- Overseas Expertise Introduction Center for Discipline Innovation of Food Nutrition and Human Health (111 Center), Guangzhou 510641, China
| | - Rana Muhammad Aadil
- National Institute of Food Science and Technology, University of Agriculture, Faisalabad 38000, Pakistan
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Del-Castillo-Llamosas A, Rodríguez-Rebelo F, Rodríguez-Martínez B, Mallo-Fraga A, Del-Río PG, Gullón B. Valorization of Avocado Seed Wastes for Antioxidant Phenolics and Carbohydrates Recovery Using Deep Eutectic Solvents (DES). Antioxidants (Basel) 2023; 12:1156. [PMID: 37371886 DOI: 10.3390/antiox12061156] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2023] [Revised: 05/05/2023] [Accepted: 05/23/2023] [Indexed: 06/29/2023] Open
Abstract
Avocado seeds represent the chief waste produced in avocado processing, leading not only to environmental problems regarding its elimination but to a loss of economic profitability. In fact, avocado seeds are known as interesting sources of bioactive compounds and carbohydrates, so their utilization may reduce the negative effect produced during the industrial manufacture of avocado-related products. In this sense, deep eutectic solvents (DES) are a novel greener alternative than organic solvents to extract bioactive polyphenols and carbohydrates. The study was based on a Box-Behnken experimental design to study the effect of three factors, temperature (40, 50, 60 °C), time (60, 120, 180 min) and water content (10, 30, 50% v/v) on the responses of total phenolic (TPC) and flavonoid content (TFC), antioxidant capacity (measured as ABTS and FRAP) and xylose content in the extract. The DES Choline chloride:glycerol (1:1) was used as solvent on avocado seed. Under optimal conditions, TPC: 19.71 mg GAE/g, TFC: 33.41 mg RE/g, ABTS: 20.91 mg TE/g, FRAP: 15.59 mg TE/g and xylose: 5.47 g/L were obtained. The tentative identification of eight phenolic compounds was assayed via HPLC-ESI. The carbohydrate content of the solid residue was also evaluated, and that solid was subjected to two different processing (delignification with DES and microwave-assisted autohydrolysis) to increase the glucan susceptibility to enzymes, and was also assayed reaching almost quantitative glucose yields. These results, added to the non-toxic, eco-friendly, and economic nature of DES, demonstrate that these solvents are an efficient alternative to organic solvents to recover phenolics and carbohydrates from food wastes.
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Affiliation(s)
| | - Fernando Rodríguez-Rebelo
- Departamento de Enxeñaría Química, Facultade de Ciencias, Universidade de Vigo, 32004 Ourense, Spain
| | | | - Adrián Mallo-Fraga
- Departamento de Enxeñaría Química, Facultade de Ciencias, Universidade de Vigo, 32004 Ourense, Spain
| | - Pablo G Del-Río
- Departamento de Enxeñaría Química, Facultade de Ciencias, Universidade de Vigo, 32004 Ourense, Spain
- Stokes Laboratories, School of Engineering, Bernal Institute, University of Limerick, V94 T9PX Limerick, Ireland
| | - Beatriz Gullón
- Departamento de Enxeñaría Química, Facultade de Ciencias, Universidade de Vigo, 32004 Ourense, Spain
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Kupnik K, Primožič M, Kokol V, Knez Ž, Leitgeb M. Enzymatic, Antioxidant, and Antimicrobial Activities of Bioactive Compounds from Avocado ( Persea americana L.) Seeds. PLANTS (BASEL, SWITZERLAND) 2023; 12:plants12051201. [PMID: 36904061 PMCID: PMC10007261 DOI: 10.3390/plants12051201] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/14/2023] [Revised: 02/27/2023] [Accepted: 03/04/2023] [Indexed: 05/06/2023]
Abstract
The aim of this research was to identify and quantify biologically active compounds from avocado (Persea americana L.) seeds (AS) utilizing different techniques with the use of ultrasound (US), ethanol (EtOH), and supercritical carbon dioxide (scCO2) for possible applications in (bio)medicine, pharmaceutical, cosmetic, or other relevant industries. Initially, a study of the process efficiency (η) was carried out, which revealed yields in the range of 2.96-12.11 wt%. The sample obtained using scCO2 was found to be the richest in total phenols (TPC) and total proteins (PC), while the sample obtained with the use of EtOH resulted in the highest content of proanthocyanidins (PAC). Phytochemical screening of AS samples, quantified by the HPLC method, indicated the presence of 14 specific phenolic compounds. In addition, the activity of the selected enzymes (cellulase, lipase, peroxidase, polyphenol oxidase, protease, transglutaminase, and superoxide dismutase) was quantified for the first time in the samples from AS. Using DPPH radical scavenging activity, the highest antioxidant potential (67.49%) was detected in the sample obtained with EtOH. The antimicrobial activity was studied using disc diffusion method against 15 microorganisms. Additionally, for the first time, the antimicrobial effectiveness of AS extract was quantified by determination of microbial growth-inhibition rates (MGIRs) at different concentrations of AS extract against three strains of Gram-negative (Escherichia coli, Pseudomonas aeruginosa, and Pseudomonas fluorescens) bacteria, three strains of Gram-positive (Bacillus cereus, Staphylococcus aureus, and Streptococcus pyogenes) bacteria, and fungi (Candida albicans). MGIRs and minimal inhibitory concentration (MIC90) values were determined after 8 and 24 h of incubation, thus enabling the screening of antimicrobial efficacy for possible further applications of AS extracts as antimicrobial agents in (bio)medicine, pharmaceutical, cosmetic, or other industries. For example, the lowest MIC90 value was determined for B. cereus after 8 h of incubation in the case of UE and SFE extracts (70 μg/mL), indicating an outstanding result and the potential of AS extracts, as the MIC values for B. cereus have not been investigated so far.
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Affiliation(s)
- Kaja Kupnik
- Faculty of Chemistry and Chemical Engineering, University of Maribor, Smetanova Ulica 17, 2000 Maribor, Slovenia
- Faculty of Mechanical Engineering, University of Maribor, Smetanova Ulica 17, 2000 Maribor, Slovenia
| | - Mateja Primožič
- Faculty of Chemistry and Chemical Engineering, University of Maribor, Smetanova Ulica 17, 2000 Maribor, Slovenia
| | - Vanja Kokol
- Faculty of Mechanical Engineering, University of Maribor, Smetanova Ulica 17, 2000 Maribor, Slovenia
| | - Željko Knez
- Faculty of Chemistry and Chemical Engineering, University of Maribor, Smetanova Ulica 17, 2000 Maribor, Slovenia
- Faculty of Medicine, University of Maribor, Taborska Ulica 8, 2000 Maribor, Slovenia
| | - Maja Leitgeb
- Faculty of Chemistry and Chemical Engineering, University of Maribor, Smetanova Ulica 17, 2000 Maribor, Slovenia
- Faculty of Medicine, University of Maribor, Taborska Ulica 8, 2000 Maribor, Slovenia
- Correspondence: ; Tel.: +386-2-2294-462
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Ray A, Dubey KK, Marathe SJ, Singhal R. Supercritical fluid extraction of bioactives from fruit waste and its therapeutic potential. FOOD BIOSCI 2023. [DOI: 10.1016/j.fbio.2023.102418] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
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Lipids and coumarin extraction from cumaru seeds (Dipteryx odorata) using sequential supercritical CO2+solvent and pressurized ethanol. J Supercrit Fluids 2022. [DOI: 10.1016/j.supflu.2022.105688] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Green Extraction Methods for Recovery of Antioxidant Compounds from Epicarp, Seed, and Seed Tegument of Avocado var. Hass (Persea americana Mill.). INTERNATIONAL JOURNAL OF FOOD SCIENCE 2022; 2022:1965757. [PMID: 35832123 PMCID: PMC9273432 DOI: 10.1155/2022/1965757] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/04/2021] [Accepted: 05/28/2022] [Indexed: 11/17/2022]
Abstract
The present study compared the extracts obtained from the epicarp, seed, and seed tegument of avocado var. Hass with pressurized liquid extraction (PLE) and ultrasound-assisted extraction (UAE). The extracts were quantified in terms of total phenolic content (TPC) and antioxidant capacity (AC). The PLE extracts had a global yield (
) like that obtained with UAE using ethanol (Et) as the solvent. For the TPC, the extracts obtained with both techniques showed no significant differences (
). On the other hand, the epicarp extracts obtained with PLE had higher values for AC: 829.8 μmol TE/gDe (ABTS) and 3,215.1 μmol Fe2+/g De (FRAP), recorded for UAE/Et. The AC in the avocado residue extracted with PLE suggested a high potential for applications in food, pharmaceutical, and cosmetology products.
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Investigation of biodiesel production parameters by transesterification of watermelon waste oil using definitive screening design and produced biodiesel characterization. SOUTH AFRICAN JOURNAL OF CHEMICAL ENGINEERING 2022. [DOI: 10.1016/j.sajce.2022.06.002] [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: 11/17/2022] Open
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Bonilla-Loaiza AM, Váquiro-Herrera HA, Solanilla-Duque JF. Physicochemical and bioactive properties of avocado ( Persea americana Mill. cv. Lorena). INTERNATIONAL JOURNAL OF FOOD ENGINEERING 2022. [DOI: 10.1515/ijfe-2021-0237] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
Chemical compounds are of great importance in the food, cosmetic and pharmaceutical industries. Nutritional components, the presence of secondary metabolites with antioxidant and antimicrobial activity, and physicochemical properties of pulp, seed and peel of Lorena avocado cultivars were studied. Antioxidant activity was evaluated by ABTS, DPPH and lipid peroxidation in pulp, seed and peel. 26 extracts was evaluated. The results confirmed that the fruit parts stabilize free radicals and inhibit lipid oxidation processes, with the highest values in seed and peel, due to their content of flavonoids, o-diphenols and phenols. The results of phytochemical screening, antioxidant capacity and antimicrobial activity, showed significant bioprospective advantage for the presence of flavonoids, condensed tannins and total phenols in the seed, peel and pulp of Lorena avocado cultivars. Avocado fruits are rich in bioactive compounds that can be used in functional food applications.
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Affiliation(s)
- Adriana Marcela Bonilla-Loaiza
- Grupo de Investigación Centro de Desarrollo Agroindustrial del Tolima (CEDAGRITOL), Facultad Ingeniería Agronómica , Universidad del Tolima , Ibagué , Colombia
| | - Henry Alexander Váquiro-Herrera
- Grupo de Investigación Centro de Desarrollo Agroindustrial del Tolima (CEDAGRITOL), Facultad Ingeniería Agronómica , Universidad del Tolima , Ibagué , Colombia
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Sustainability in Skin Care: Incorporation of Avocado Peel Extracts in Topical Formulations. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27061782. [PMID: 35335146 PMCID: PMC8954566 DOI: 10.3390/molecules27061782] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/19/2022] [Revised: 03/04/2022] [Accepted: 03/07/2022] [Indexed: 12/02/2022]
Abstract
The avocado peel is an agro-industrial by-product that has exhibited a massive increase in its production in the last few years. The reuse and valorisation of this by-product are essential since its disposal raises environmental concerns. In the present study, ethanolic extracts of avocado peels of the Hass variety were obtained, for three extraction times (1.5 h, 3 h and 4 h) and analysed for their antioxidant and antibacterial properties. Antioxidant evaluations of the extracts revealed that the extraction time of 1.5 h exhibited the best results amongst the three, with a DPPH inhibition percentage of 93.92 ± 1.29 and an IC50 percentage, the necessary concentration of the extract to inhibit 50% of DPPH, of 37.30 ± 1.00. The antibacterial capacity of the extracts was evaluated and it was revealed that they were able to inhibit the growth and development of bacteria of the Staphylococcus family. The obtained extract was incorporated in two types of cosmetic formulations (oil-in-water and water-in-oil) and their stability was evaluated and compared with formulations containing synthetic preservatives (BHT and phenoxyethanol). The results of the stability evaluation suggest that the avocado peel extract has the potential to be incorporated in both types of emulsions, acting as an antioxidant and antibacterial agent, proving it to be a viable option to reduce/replace the use of synthetic preservatives. Furthermore, the avocado peel extract proved to be more effective and stable in oil-in-water emulsions. These results highlight the possibility of obtaining sustainable cosmetics, significantly reducing the negative impacts on the environment by the incorporation of extracts sourced from the avocado peel, an interesting source of phenolic compounds, an abundant and low-cost by-product.
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Optimization of biodiesel production parameters from Prosopis julifera seed using definitive screening design. Heliyon 2022; 8:e08965. [PMID: 35243085 PMCID: PMC8857467 DOI: 10.1016/j.heliyon.2022.e08965] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2021] [Revised: 11/22/2021] [Accepted: 02/11/2022] [Indexed: 11/22/2022] Open
Abstract
The concept of waste to valuable products is a hot topic with more explorations going on worldwide to minimize the environmental pollution and wastage of food-based feedstocks. In this work, biodiesel was produced from Prosopis julifera seed oil using ethanol as solvent and magnesium nanocatalyst and the process was optimized by employing an advanced statistical optimization method; definitive screening design. The maximum biodiesel yield from Prosopis julifera seed was found to be 32.5%. Acid esterification and transesterification were applied to minimize the acidity. Acidity of the P. julifera oil was initially reduced to 1.52 mg KOH/g using acid catalyst H2SO4, and then to 0.88mg KOH/g by transesterification process using magnesium oxide. Optimum biodiesel conversion efficiency of 94.83% was achieved under 10:1 ethanol-to-oil ratio, 5% magnesium oxide concentration, 80 min reaction time, 45 °C reaction temperature and 1000 rpm agitation rate. The transesterification reaction was found to be highly affected by the ethanol-to-oil ratio and catalyst concentration. The results showed that the catalytic activity of the magnesium oxide was sufficient for the production of biodiesel from P. julifera seed oil. The fuel properties were evaluated according to ASTM standards. FTIR analysis confirmed the existence of functional groups with respect to the fingerprint region of P. julifera ethyl esters. The Definitive screening design method can be suggested as an alternative method for the optimization of process parameters within limited materials and number of experiments. The findings suggest that this method of production of biodiesel from P. julifera seed oil shall open up new possibilities for a novel natural biofuel.
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Hundie KB, Akuma DA. Optimization of biodiesel production parameters from Prosopis julifera seed using definitive screening design. Heliyon 2022; 8:e08965. [DOI: https:/doi.org/10.1016/j.heliyon.2022.e08965] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/18/2023] Open
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16
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Del Castillo-Llamosas A, Rodríguez-Martínez B, Del Río PG, Eibes G, Garrote G, Gullón B. Hydrothermal treatment of avocado peel waste for the simultaneous recovery of oligosaccharides and antioxidant phenolics. BIORESOURCE TECHNOLOGY 2021; 342:125981. [PMID: 34583108 DOI: 10.1016/j.biortech.2021.125981] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/12/2021] [Revised: 09/14/2021] [Accepted: 09/15/2021] [Indexed: 06/13/2023]
Abstract
Avocado industrial processing generates huge quantities of residues that are currently wasted without any valuable commercial application. This work deals with autohydrolysis of Avocado peel (AP) for the concomitant recovery of oligosaccharides and polyphenolics. Temperature of 150 °C allowed the highest recovery of oligosaccharides (14.3 g oligosaccharides/100 g AP) and high recovery of antioxidant phenolics (3.48 g gallic acid equivalents/100 g AP and 10.80 g Trolox equivalents/100 g AP measured with ABTS●+ assay). The liquor obtained at this temperature was characterized by TGA and FTIR to study its thermal stability and functional groups. UHPLC-TOF MS analysis of an ethyl acetate extract of AP liquor enabled the tentative identification of 43 compounds, belonging to various metabolite families, including flavonoids, phenolic acids, organic acids, lignans and fatty acids. These findings demonstrated that autohydrolysis of AP is a suitable technology to obtain bioactive agents with potential uses in food and cosmetic industries.
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Affiliation(s)
| | | | - Pablo G Del Río
- Universidade de Vigo, Departamento de Enxeñaría Química, Facultade de Ciencias, 32004 Ourense, Spain.
| | - Gemma Eibes
- CRETUS, Department of Chemical Engineering, Universidade de Santiago de Compostela, Santiago de Compostela, 15706 A Coruña, Spain
| | - Gil Garrote
- Universidade de Vigo, Departamento de Enxeñaría Química, Facultade de Ciencias, 32004 Ourense, Spain
| | - Beatriz Gullón
- Universidade de Vigo, Departamento de Enxeñaría Química, Facultade de Ciencias, 32004 Ourense, Spain
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Identification and Recovery of Valuable Bioactive Compounds from Potato Peels: A Comprehensive Review. Antioxidants (Basel) 2021; 10:antiox10101630. [PMID: 34679764 PMCID: PMC8533085 DOI: 10.3390/antiox10101630] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2021] [Revised: 10/13/2021] [Accepted: 10/14/2021] [Indexed: 12/02/2022] Open
Abstract
Nowadays, the potato is one of the most cultivated and consumed food crops in the world and, in recent years, its production has experienced a sharp increase. Its industrial processing generates several by-products that are wasted and cause economic and environmental problems. Among them, potato peel stands out, representing up to 10% of the total potato residues obtained in the processing. On the other hand, these wastes, in addition to presenting antioxidant compounds, are rich in interesting chemical compounds of great value in a biorefinery model. This review summarizes the main compounds present in potato skins as well as the most used and innovative extraction methods employed for their isolation, with special emphasis on the fractions with biological activities. In addition, a sustainable biorefinery proposal focused on obtaining high added-value products with potential applications in the pharmaceutical, food, nutraceutical, or cosmetic industries is included.
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Mora-Sandí A, Ramírez-González A, Castillo-Henríquez L, Lopretti-Correa M, Vega-Baudrit JR. Persea Americana Agro-Industrial Waste Biorefinery for Sustainable High-Value-Added Products. Polymers (Basel) 2021; 13:1727. [PMID: 34070330 PMCID: PMC8197556 DOI: 10.3390/polym13111727] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2021] [Revised: 05/11/2021] [Accepted: 05/20/2021] [Indexed: 11/16/2022] Open
Abstract
Significant problems have arisen in recent years, such as global warming and hunger. These complications are related to the depletion and exploitation of natural resources, as well as environmental pollution. In this context, bioprocesses and biorefinery can be used to manage agro-industrial wastes for obtaining high-value-added products. A large number of by-products are composed of lignin and cellulose, having the potential to be exploited sustainably for chemical and biological conversion. The biorefinery of agro-industrial wastes has applications in many fields, such as pharmaceuticals, medicine, material engineering, and environmental remediation. A comprehensive approach has been developed toward the agro-industrial management of avocado (Persea americana) biomass waste, which can be transformed into high-value-added products to mitigate global warming, save non-renewable energy, and contribute to health and science. Therefore, this work presents a comprehensive review on avocado fruit waste biorefinery and its possible applications as biofuel, as drugs, as bioplastics, in the environmental field, and in emerging nanotechnological opportunities for economic and scientific growth.
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Affiliation(s)
- Anthony Mora-Sandí
- School of Chemistry, National University of Costa Rica (UNA), Heredia 86-3000, Costa Rica; (A.M.-S.); (A.R.-G.)
| | - Abigail Ramírez-González
- School of Chemistry, National University of Costa Rica (UNA), Heredia 86-3000, Costa Rica; (A.M.-S.); (A.R.-G.)
| | - Luis Castillo-Henríquez
- National Laboratory of Nanotechnology (LANOTEC), National Center for High Technology (CeNAT), San José 1174-1200, Costa Rica;
- Faculty of Pharmacy, University of Costa Rica, San José 11501-2060, Costa Rica
| | - Mary Lopretti-Correa
- Nuclear Research Center, Faculty of Science, Universidad de la República (UdelaR), Montevideo 11300, Uruguay;
| | - José Roberto Vega-Baudrit
- School of Chemistry, National University of Costa Rica (UNA), Heredia 86-3000, Costa Rica; (A.M.-S.); (A.R.-G.)
- National Laboratory of Nanotechnology (LANOTEC), National Center for High Technology (CeNAT), San José 1174-1200, Costa Rica;
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Avocado-Derived Biomass as a Source of Bioenergy and Bioproducts. APPLIED SCIENCES-BASEL 2020. [DOI: 10.3390/app10228195] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
The avocado (Persea americana Mill.) is a tree native to Mexico and Guatemala. Avocado consumption, fresh or in the form of processed products, is growing everywhere and it has caused a large number of countries to invest heavily in avocado production. The industrialization of avocado gives as a result a huge amount of waste, not only the peel and stone but also that waste generated by the pruning practices and oil extraction. These biomasses could be converted into raw materials to obtain different types of co-products, but this implies changes in the use of these resources, the design of efficient production systems, and integration to take full advantage of them, e.g., by developing biorefinery models. Therefore, this review firstly gives a snapshot of those residues generated in the avocado industry and provides their chemical composition. Secondly, this review presents updated information about the valorization ways of avocado-derived biomass to obtain bioenergy, biofuels, and other marketable products (starch, protein, phenolic compounds, and biosorbents, among others) using a single process or integrated processes within a biorefinery context. Green technologies to obtain these products are also covered, e.g., based on the application of microwaves, ultrasound, supercritical fluids, etc. As a conclusion, there is a variety of ways to valorize avocado waste in single processes, but it would be promising to develop biorefinery schemes. This would enable the avocado sector to move towards the zero-waste principle.
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Salazar-López NJ, Domínguez-Avila JA, Yahia EM, Belmonte-Herrera BH, Wall-Medrano A, Montalvo-González E, González-Aguilar GA. Avocado fruit and by-products as potential sources of bioactive compounds. Food Res Int 2020; 138:109774. [PMID: 33292952 DOI: 10.1016/j.foodres.2020.109774] [Citation(s) in RCA: 42] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2020] [Revised: 09/23/2020] [Accepted: 09/27/2020] [Indexed: 12/22/2022]
Abstract
The increased demand for avocado, and therefore production and consumption, generate large quantities of by-products such as seeds, peel, and defatted pulp, which account for approximately 30% of fruit weight, and which are commonly discarded and wasted. The present review focuses on various compounds present in avocado fruit and its by-products, with particular interest to those that can be potentially used in different industrial forms, such as nutraceuticals, to add to or to formulate functional foods, among other uses. Main molecular families of bioactive compounds present in avocado include phenolic compounds (such as hydroxycinnamic acids, hydroxybenzoic acids, flavonoids and proanthocyanins), acetogenins, phytosterols, carotenoids and alkaloids. Types, contents, and possible functions of these bioactive compounds are described from a chemical, biological, and functional approach. The use of avocado and its by-products requires using processing methods that allow highest yield with the least amount of unusable residues, while also preserving the integrity of bioactive compounds of interest. Avocado cultivar, fruit development, ripening stage, and processing methods are some of the main factors that influence the type and amount of extractable molecules. The phytochemical diversity of avocado fruit and its by-products make them potential sources of nutraceutical compounds, from which functional foods can be obtained, as well as other applications in food, health, pigment, and material sectors, among others.
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Affiliation(s)
- Norma Julieta Salazar-López
- Centro de Investigación en Alimentación y Desarrollo A. C., Carretera Gustavo Enrique Astiazarán Rosas No. 46, Col. La Victoria, Hermosillo, Sonora 83304, Mexico
| | - J Abraham Domínguez-Avila
- Cátedras CONACYT-Centro de Investigación en Alimentación y Desarrollo A. C., Carretera Gustavo Enrique Astiazarán Rosas No. 46, Col. La Victoria, Hermosillo, Sonora 83304, Mexico
| | - Elhadi M Yahia
- Laboratorio de Fitoquímicos y Nutrición, Facultad de Ciencias Naturales, Universidad Autónoma de Querétaro, Avenida de las Ciencias, Juriquilla, Querétaro, 76230 Qro., Mexico.
| | - Beatriz Haydee Belmonte-Herrera
- Centro de Investigación en Alimentación y Desarrollo A. C., Carretera Gustavo Enrique Astiazarán Rosas No. 46, Col. La Victoria, Hermosillo, Sonora 83304, Mexico
| | - Abraham Wall-Medrano
- Instituto de Ciencias Biomédicas, Universidad Autónoma de Ciudad Juárez, Anillo Envolvente del PRONAF y Estocolmo s/n, Ciudad Juárez, Chihuahua 32310, Mexico.
| | - Efigenia Montalvo-González
- Laboratorio Integral de Investigación en Alimentos, Tecnológico Nacional de México-Instituto Tecnológico de Tepic, Av. Tecnológico 255 Fracc. Lagos del Country, Tepic, Nayarit 63175, Mexico.
| | - G A González-Aguilar
- Centro de Investigación en Alimentación y Desarrollo A. C., Carretera Gustavo Enrique Astiazarán Rosas No. 46, Col. La Victoria, Hermosillo, Sonora 83304, Mexico.
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