This work proposes for the first time a model for reusing almond (Prunus dulcis cv. Casteltermini from Sicily, Southern Italy) skin to formulate a new functional blackberry (Rubus ulmifolius Schott) jam. For this purpose, blackberries were analysed fresh and as jam, traditionally prepared with a minimum fruit amount of 80%. Different percentages of almond skin (20, 15, and 10% w/w) were added to jam. The phytochemical profile of enriched jam was investigated by LC-ESI/LTQOrbitrap/MS analyses. Anthocyanins, hydrolysable tannins, and triterpenoids were identified in a blackberry extract, while proanthocyanidins, flavonoids, and oxylipins were identified in an almond extract. The n-hexane extract of P. dulcis skin, investigated by GC–MS, evidenced linoleic, palmitic, and oleic acids as the main abundant compounds. Samples were investigated for their antioxidant activity using DPPH, ABTS, β-carotene, and FRAP tests. The hypoglycaemic and hypolipidemic effects were studied by α-amylase, α-glucosidase, and lipase inhibitory assays. In order to evaluate the effect of thermal process on enriched jam bioactivity, pasteurisation was applied. An increase in activities for all samples was observed, in particular for jam enriched with 20% w/w of almond skin. Based on obtained data, and supported by sensory analysis, we propose enriched jam as a promising source of compounds useful for preventing diseases associated with oxidative stress.

Loizzo M.R., Tundis R., Leporini M., D'urso G., Candela R.G., Falco T., et al. (2021). Almond (Prunus dulcis cv. casteltermini) skin confectionery by-products: New opportunity for the development of a functional blackberry (Rubus ulmifolius schott) jam. ANTIOXIDANTS, 10(8), 1218 [10.3390/antiox10081218].

Almond (Prunus dulcis cv. casteltermini) skin confectionery by-products: New opportunity for the development of a functional blackberry (Rubus ulmifolius schott) jam

Bruno M.
Conceptualization
;
Sottile F.
Ultimo
Conceptualization
2021-07-29

Abstract

This work proposes for the first time a model for reusing almond (Prunus dulcis cv. Casteltermini from Sicily, Southern Italy) skin to formulate a new functional blackberry (Rubus ulmifolius Schott) jam. For this purpose, blackberries were analysed fresh and as jam, traditionally prepared with a minimum fruit amount of 80%. Different percentages of almond skin (20, 15, and 10% w/w) were added to jam. The phytochemical profile of enriched jam was investigated by LC-ESI/LTQOrbitrap/MS analyses. Anthocyanins, hydrolysable tannins, and triterpenoids were identified in a blackberry extract, while proanthocyanidins, flavonoids, and oxylipins were identified in an almond extract. The n-hexane extract of P. dulcis skin, investigated by GC–MS, evidenced linoleic, palmitic, and oleic acids as the main abundant compounds. Samples were investigated for their antioxidant activity using DPPH, ABTS, β-carotene, and FRAP tests. The hypoglycaemic and hypolipidemic effects were studied by α-amylase, α-glucosidase, and lipase inhibitory assays. In order to evaluate the effect of thermal process on enriched jam bioactivity, pasteurisation was applied. An increase in activities for all samples was observed, in particular for jam enriched with 20% w/w of almond skin. Based on obtained data, and supported by sensory analysis, we propose enriched jam as a promising source of compounds useful for preventing diseases associated with oxidative stress.
Settore AGR/03 - Arboricoltura Generale E Coltivazioni Arboree
Settore CHIM/06 - Chimica Organica
Loizzo M.R., Tundis R., Leporini M., D'urso G., Candela R.G., Falco T., et al. (2021). Almond (Prunus dulcis cv. casteltermini) skin confectionery by-products: New opportunity for the development of a functional blackberry (Rubus ulmifolius schott) jam. ANTIOXIDANTS, 10(8), 1218 [10.3390/antiox10081218].
File in questo prodotto:
File Dimensione Formato  
2021 - Almond Skin Ant.pdf

non disponibili

Tipologia: Versione Editoriale
Dimensione 397.89 kB
Formato Adobe PDF
397.89 kB Adobe PDF   Visualizza/Apri   Richiedi una copia

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/10447/517465
Citazioni
  • ???jsp.display-item.citation.pmc??? 2
  • Scopus 3
  • ???jsp.display-item.citation.isi??? 2
social impact