Publicação
Chemical, nutritional and bioactive characterization of two varieties of pears with a view to their industrial enhancement
| Resumo: | Food waste and losses emerge as a currently worrying and urgent problem with significant environmental and economic impacts. The fruit and vegetable industry are considered the main producer of food waste. Seeds, pomace, peel and even the whole fruit when discarded by the producer, retailer, or consumer for various reasons, including non-compliance with commercial standards (size, color, shape, among others) are considered fruit bio-waste. However, this bio-waste is referred to as excellent sources of bioactive compounds of high interest, namely proteins, dietary fibers, vitamins, and phenolic compounds with antioxidant properties. In this context, many natural matrices have been highly explored by the scientific community as a source of nutrients with different properties related to human well-being and health. Pyrus spp., commonly known as pear, belongs to the Rosacea family and is a popularly consumed and appreciated fruit throughout the world. The European pear (Pyrus communis L.) and the Asian pear (Pyrus pyrifolia (Burm.) Nak), are two species identified as the most commercialized in the world. In addition to being consumed fresh or processed, these species have been used since antiquity as a treatment for some diseases, due to their antitussive, anti- inflammatory, and diuretic activities. However, the high consumption results in a very high amount of waste, representing negative consequences for the environment and causing great economic losses for the industry. Thus, the chemical, nutritional and bioactive characterization of this type of bio-waste is essential for the use of these raw materials and, consequently, their recovery. In this sense, the present study aimed to carry out the nutritional and chemical characterization of two different varieties of pear bio-waste, P. communis and P. pyrifolia, supplied by a national company. Additionally, the bioactive potential of extracts obtained from different bio-waste was also studied. Moisture, ash, protein, fat, carbohydrate, and energy contents were determined following official AOAC analysis methodologies. For chemical characterization, quantification of free sugars was performed using an HPLC-RI system, organic acids by UFLC- DAD and fatty acids by GC-FID. Total phenols and total flavonoids were also determined according to colorimetric assay and different bioactivities (antioxidant, antimicrobial, anti- inflammatory, and cytotoxicity activities) were analyzed. through different in vitro assays. The nutritional value revealed that carbohydrates were the predominant macroelement in the analyzed samples. Fructose was the major free sugar, malic acid was the major organic acid, while palmitic, oleic and linoleic acid were the predominant fatty acids. Moreover, the peels of the two pear varieties stand out as a promising source of bioactive compounds, showing a high antioxidant and antimicrobial results. In short, this study aims to contribute to the valorization of these bio-waste as natural matrices on an industrial scale, by converting them into value-added products and at the same time contributing to the goal of zero waste. |
|---|---|
| Autores principais: | Cherif, Riadh |
| Assunto: | Bio-waste Bioactive compounds Nutritional value Pyrus communis L. Pyrus pyrifolia (Burm.) Nak |
| Ano: | 2022 |
| País: | Portugal |
| Tipo de documento: | dissertação de mestrado |
| Tipo de acesso: | acesso aberto |
| Instituição associada: | Instituto Politécnico de Bragança |
| Idioma: | inglês |
| Origem: | Biblioteca Digital do IPB |
| _version_ | 1867173001195159552 |
|---|---|
| author | Cherif, Riadh |
| author_facet | Cherif, Riadh |
| author_role | author |
| contributor_name_str_mv | Caleja, Cristina Pereira, Eliana Charfi, Ichrak Biblioteca Digital do IPB |
| country_str | PT |
| creators_json_txt | [{\"Person.name\":\"Cherif, Riadh\"}] |
| datacite.contributors.contributor.contributorName.fl_str_mv | Caleja, Cristina Pereira, Eliana Charfi, Ichrak Biblioteca Digital do IPB |
| datacite.creators.creator.creatorName.fl_str_mv | Cherif, Riadh |
| datacite.date.Accepted.fl_str_mv | 2022-01-01T00:00:00Z |
| datacite.date.available.fl_str_mv | 2024-08-02T00:30:15Z |
| datacite.date.embargoed.fl_str_mv | 2024-08-02T00:30:15Z |
| datacite.rights.fl_str_mv | http://purl.org/coar/access_right/c_abf2 |
| datacite.subjects.subject.fl_str_mv | Bio-waste Bioactive compounds Nutritional value Pyrus communis L. Pyrus pyrifolia (Burm.) Nak |
| datacite.titles.title.fl_str_mv | Chemical, nutritional and bioactive characterization of two varieties of pears with a view to their industrial enhancement |
| dc.contributor.none.fl_str_mv | Caleja, Cristina Pereira, Eliana Charfi, Ichrak Biblioteca Digital do IPB |
| dc.creator.none.fl_str_mv | Cherif, Riadh |
| dc.date.Accepted.fl_str_mv | 2022-01-01T00:00:00Z |
| dc.date.available.fl_str_mv | 2024-08-02T00:30:15Z |
| dc.date.embargoed.fl_str_mv | 2024-08-02T00:30:15Z |
| dc.format.none.fl_str_mv | application/pdf |
| dc.identifier.none.fl_str_mv | http://hdl.handle.net/10198/28665 |
| dc.language.none.fl_str_mv | eng |
| dc.rights.none.fl_str_mv | http://purl.org/coar/access_right/c_abf2 |
| dc.subject.none.fl_str_mv | Bio-waste Bioactive compounds Nutritional value Pyrus communis L. Pyrus pyrifolia (Burm.) Nak |
| dc.title.fl_str_mv | Chemical, nutritional and bioactive characterization of two varieties of pears with a view to their industrial enhancement |
| dc.type.none.fl_str_mv | http://purl.org/coar/resource_type/c_bdcc |
| description | Food waste and losses emerge as a currently worrying and urgent problem with significant environmental and economic impacts. The fruit and vegetable industry are considered the main producer of food waste. Seeds, pomace, peel and even the whole fruit when discarded by the producer, retailer, or consumer for various reasons, including non-compliance with commercial standards (size, color, shape, among others) are considered fruit bio-waste. However, this bio-waste is referred to as excellent sources of bioactive compounds of high interest, namely proteins, dietary fibers, vitamins, and phenolic compounds with antioxidant properties. In this context, many natural matrices have been highly explored by the scientific community as a source of nutrients with different properties related to human well-being and health. Pyrus spp., commonly known as pear, belongs to the Rosacea family and is a popularly consumed and appreciated fruit throughout the world. The European pear (Pyrus communis L.) and the Asian pear (Pyrus pyrifolia (Burm.) Nak), are two species identified as the most commercialized in the world. In addition to being consumed fresh or processed, these species have been used since antiquity as a treatment for some diseases, due to their antitussive, anti- inflammatory, and diuretic activities. However, the high consumption results in a very high amount of waste, representing negative consequences for the environment and causing great economic losses for the industry. Thus, the chemical, nutritional and bioactive characterization of this type of bio-waste is essential for the use of these raw materials and, consequently, their recovery. In this sense, the present study aimed to carry out the nutritional and chemical characterization of two different varieties of pear bio-waste, P. communis and P. pyrifolia, supplied by a national company. Additionally, the bioactive potential of extracts obtained from different bio-waste was also studied. Moisture, ash, protein, fat, carbohydrate, and energy contents were determined following official AOAC analysis methodologies. For chemical characterization, quantification of free sugars was performed using an HPLC-RI system, organic acids by UFLC- DAD and fatty acids by GC-FID. Total phenols and total flavonoids were also determined according to colorimetric assay and different bioactivities (antioxidant, antimicrobial, anti- inflammatory, and cytotoxicity activities) were analyzed. through different in vitro assays. The nutritional value revealed that carbohydrates were the predominant macroelement in the analyzed samples. Fructose was the major free sugar, malic acid was the major organic acid, while palmitic, oleic and linoleic acid were the predominant fatty acids. Moreover, the peels of the two pear varieties stand out as a promising source of bioactive compounds, showing a high antioxidant and antimicrobial results. In short, this study aims to contribute to the valorization of these bio-waste as natural matrices on an industrial scale, by converting them into value-added products and at the same time contributing to the goal of zero waste. |
| dirty | 0 |
| eu_rights_str_mv | openAccess |
| format | masterThesis |
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| identifier.url.fl_str_mv | http://hdl.handle.net/10198/28665 |
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| institution | Instituto Politécnico de Bragança |
| instname_str | Instituto Politécnico de Bragança |
| language | eng |
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| organization_str_mv | urn:organizationAcronym:ipb |
| person_str_mv | Cherif, Riadh |
| publishDate | 2022 |
| reponame_str | Biblioteca Digital do IPB |
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| service_str_mv | urn:repositoryAcronym:ipb |
| spelling | engpt_PTFood waste and losses emerge as a currently worrying and urgent problem with significant environmental and economic impacts. The fruit and vegetable industry are considered the main producer of food waste. Seeds, pomace, peel and even the whole fruit when discarded by the producer, retailer, or consumer for various reasons, including non-compliance with commercial standards (size, color, shape, among others) are considered fruit bio-waste. However, this bio-waste is referred to as excellent sources of bioactive compounds of high interest, namely proteins, dietary fibers, vitamins, and phenolic compounds with antioxidant properties. In this context, many natural matrices have been highly explored by the scientific community as a source of nutrients with different properties related to human well-being and health. Pyrus spp., commonly known as pear, belongs to the Rosacea family and is a popularly consumed and appreciated fruit throughout the world. The European pear (Pyrus communis L.) and the Asian pear (Pyrus pyrifolia (Burm.) Nak), are two species identified as the most commercialized in the world. In addition to being consumed fresh or processed, these species have been used since antiquity as a treatment for some diseases, due to their antitussive, anti- inflammatory, and diuretic activities. However, the high consumption results in a very high amount of waste, representing negative consequences for the environment and causing great economic losses for the industry. Thus, the chemical, nutritional and bioactive characterization of this type of bio-waste is essential for the use of these raw materials and, consequently, their recovery. In this sense, the present study aimed to carry out the nutritional and chemical characterization of two different varieties of pear bio-waste, P. communis and P. pyrifolia, supplied by a national company. Additionally, the bioactive potential of extracts obtained from different bio-waste was also studied. Moisture, ash, protein, fat, carbohydrate, and energy contents were determined following official AOAC analysis methodologies. For chemical characterization, quantification of free sugars was performed using an HPLC-RI system, organic acids by UFLC- DAD and fatty acids by GC-FID. Total phenols and total flavonoids were also determined according to colorimetric assay and different bioactivities (antioxidant, antimicrobial, anti- inflammatory, and cytotoxicity activities) were analyzed. through different in vitro assays. The nutritional value revealed that carbohydrates were the predominant macroelement in the analyzed samples. Fructose was the major free sugar, malic acid was the major organic acid, while palmitic, oleic and linoleic acid were the predominant fatty acids. Moreover, the peels of the two pear varieties stand out as a promising source of bioactive compounds, showing a high antioxidant and antimicrobial results. In short, this study aims to contribute to the valorization of these bio-waste as natural matrices on an industrial scale, by converting them into value-added products and at the same time contributing to the goal of zero waste.application/pdfpt_PTChemical, nutritional and bioactive characterization of two varieties of pears with a view to their industrial enhancementCherif, RiadhCaleja, CristinaPereira, ElianaCharfi, IchrakHostingInstitutionOrganizationalBiblioteca Digital do IPBe-mailmailto:dspace@ipb.ptdspace@ipb.ptURNurn:tid:2033373792024-08-02T00:30:15Z20222022-01-01T00:00:00ZHandlehttp://hdl.handle.net/10198/28665http://purl.org/coar/access_right/c_abf2open accessBio-wasteBioactive compoundsNutritional valuePyrus communis L.Pyrus pyrifolia (Burm.) Nak2221772 bytesliteraturehttp://purl.org/coar/resource_type/c_bdccmaster thesishttp://purl.org/coar/access_right/c_abf2application/pdffulltexthttps://bibliotecadigital.ipb.pt/bitstreams/fa5e86a4-8d03-4079-83c0-4d51e71f8cfe/download |
| spellingShingle | Chemical, nutritional and bioactive characterization of two varieties of pears with a view to their industrial enhancement Cherif, Riadh Bio-waste Bioactive compounds Nutritional value Pyrus communis L. Pyrus pyrifolia (Burm.) Nak |
| status | SINGLETON |
| subject.fl_str_mv | Bio-waste Bioactive compounds Nutritional value Pyrus communis L. Pyrus pyrifolia (Burm.) Nak |
| title | Chemical, nutritional and bioactive characterization of two varieties of pears with a view to their industrial enhancement |
| title_full | Chemical, nutritional and bioactive characterization of two varieties of pears with a view to their industrial enhancement |
| title_fullStr | Chemical, nutritional and bioactive characterization of two varieties of pears with a view to their industrial enhancement |
| title_full_unstemmed | Chemical, nutritional and bioactive characterization of two varieties of pears with a view to their industrial enhancement |
| title_short | Chemical, nutritional and bioactive characterization of two varieties of pears with a view to their industrial enhancement |
| title_sort | Chemical, nutritional and bioactive characterization of two varieties of pears with a view to their industrial enhancement |
| topic | Bio-waste Bioactive compounds Nutritional value Pyrus communis L. Pyrus pyrifolia (Burm.) Nak |
| topic_facet | Bio-waste Bioactive compounds Nutritional value Pyrus communis L. Pyrus pyrifolia (Burm.) Nak |
| url | http://hdl.handle.net/10198/28665 |
| visible | 1 |