Potential of Pre-Harvest Wastes of Tobacco ( Nicotiana tabacum L.) Crops, Grown for Smoke Products, as Source of Bioactive Compounds (Phenols and Flavonoids)

Maria Isabella Sifola, Linda Carrino, Eugenio Cozzolino, Luisa del Piano, Giulia Graziani and Alberto Ritieni
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Maria Isabella Sifola: Department of Agricultural Sciences, University of Napoli Federico II, Via Università 100, 80055 Portici, Italy
Linda Carrino: Department of Agricultural Sciences, University of Napoli Federico II, Via Università 100, 80055 Portici, Italy
Eugenio Cozzolino: CREA-CI, Council for Agricultural Research and Economics-Research Institute for Cereals and Industrial Crops, Via del Torrino 2, 81100 Caserta, Italy
Luisa del Piano: CREA-CI, Council for Agricultural Research and Economics-Research Institute for Cereals and Industrial Crops, Via del Torrino 2, 81100 Caserta, Italy
Giulia Graziani: Department of Pharmacy, University of Napoli Federico II, Via Domenico Montesano 49, 80131 Napoli, Italy
Alberto Ritieni: Department of Pharmacy, University of Napoli Federico II, Via Domenico Montesano 49, 80131 Napoli, Italy

Sustainability, 2021, vol. 13, issue 4, 1-13

Abstract: Tobacco cultivation is characterized by high amounts of waste biomasses whose disposal frequently represents a complex and expensive problem. A study was conducted to evaluate thepotential of pre-harvest light air-cured (Burley) and dark fire-cured (Kentucky) tobacco waste biomasses as a source of bioactive compounds (nutraceutical ingredients) such as polyphenols. Pre-harvest waste materials (topping fresh materials and residual stalks at final harvest) were collected to determine dry matter, total polyphenols content (TPC; Folin assay), and DPPH (2,2-diphenyl-1-picrylhydrazyl) and ABTS (2,20-azino-bis(3-ethylbenzothiazoline-60-sulfonic acid) diammonium salt) antioxidant capacity. Polyphenols quali-quantitative profiles obtained by Orbitrap Q Exactive of both tobacco types were also determined. Total pre-harvest waste biomass amounted to 3956.9 and 1304.4 kg d.w. ha −1 in light air-cured (Burley) and dark fire-cured (Kentucky) tobacco types, respectively. Polyphenols content, expressed as g kg −1 dry weight (d.w.), ranged between 4.6 and 15.7 g kg −1 d.w. and was generally greater in leaves than in stalks. Considering both leaves and stalks, the light air-cured (Burley) tobacco crop yielded 22.1 kg ha −1 of polyphenols, while the dark fire-cured (Kentucky) tobacco yielded 12.0 kg ha −1 . DPPH and ABTS were significantly greater in leaves than in stalks waste biomass in both types of tobacco. The most abundant components were quinic and chlorogenic acids, rutin, and luteolin rutinoside.

Keywords: antioxidant capacity; chlorogenic acid; dark fire-cured tobacco; leaves; light air-cured tobacco; polyphenols; rutin; stalks (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2021
References: View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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