title: Effect of meadowsweet flower extract-pullulan coatings on rhizopus rot development and postharvest quality of cold-stored red peppers.
abstract: The study involved an examination of the antifungal activity on red peppers of pullulan coating (P) and pullulan coating containing either water-ethanol (P + eEMF) or ethanol extract of meadowsweet flowers (P + eEMF). Pullulan was obtained from a culture of Aureobasidium pullulans B-1 mutant. Both non-inoculated peppers and those artificially inoculated with Rhizopus arrhizus were coated and incubated at 24 °C for 5 days. The intensity of the decay caused by Rhizopus arrhizus in the peppers with P and P + eEMF coatings was nearly 3-fold lower, and in the case of P + weEMF 5-fold lower, than that observed in the control peppers. Additionally, the P + weEMF coating decreased, almost two-fold the severity of pepper decay compared to other samples. The influence of coating of pepper postharvest quality was examined after 30 days of storage at 6 °C and 70%-75% RH. All coatings formed a thin and well-attached additional layer of an intensified gloss. During storage, color, total soluble solid content and weight loss of coated peppers were subject to lower changes in comparison with uncoated ones. The results indicate the possibility of the application of pullulan coatings containing MFEs as an alternative to the chemical fungicides used to combat pepper postharvest diseases.
authors.affiliation: Department of Biotechnology, Microbiology and Food Evaluation, Warsaw University of Life Sciences-SGGW, 02-767 Warsaw, Nowoursynowska 159C, Poland.
authors.forename: Alicja
authors.initials: A
authors.lastname: Synowiec
authors.affiliation: Department of Biotechnology, Microbiology and Food Evaluation, Warsaw University of Life Sciences-SGGW, 02-767 Warsaw, Nowoursynowska 159C, Poland. malgorzata_gniewosz@sggw.pl.
authors.forename: Małgorzata
authors.initials: M
authors.lastname: Gniewosz
authors.affiliation: Department of Biotechnology, Microbiology and Food Evaluation, Warsaw University of Life Sciences-SGGW, 02-767 Warsaw, Nowoursynowska 159C, Poland.
authors.forename: Karolina
authors.initials: K
authors.lastname: Kraśniewska
authors.affiliation: Department of Biotechnology, Microbiology and Food Evaluation, Warsaw University of Life Sciences-SGGW, 02-767 Warsaw, Nowoursynowska 159C, Poland.
authors.forename: Anna
authors.initials: A
authors.lastname: Chlebowska-Śmigiel
authors.affiliation: Department of Vegetable and Medicinal Plants, Warsaw University of Life Sciences-SGGW, 02-767 Warsaw, Nowoursynowska 159C, Poland.
authors.forename: Jarosław L
authors.initials: JL
authors.lastname: Przybył
authors.affiliation: Department of Vegetable and Medicinal Plants, Warsaw University of Life Sciences-SGGW, 02-767 Warsaw, Nowoursynowska 159C, Poland.
authors.forename: Katarzyna
authors.initials: K
authors.lastname: Bączek
authors.affiliation: Department of Vegetable and Medicinal Plants, Warsaw University of Life Sciences-SGGW, 02-767 Warsaw, Nowoursynowska 159C, Poland.
authors.forename: Zenon
authors.initials: Z
authors.lastname: Węglarz
mesh_terms: D005519:Food Preservation; D005659:Fungicides, Industrial / Q000008:administration & dosage; D005936:Glucans / Q000008:administration & dosage / Q000737:chemistry; D029222:Piper nigrum / Q000187:drug effects / Q000254:growth & development / Q000382:microbiology*; D010935:Plant Diseases / Q000382:microbiology* / Q000628:therapy; D010936:Plant Extracts / Q000008:administration & dosage / Q000737:chemistry; D012233:Rhizopus / Q000187:drug effects* / Q000472:pathogenicity
chemical_list: D005659:Fungicides, Industrial; D005936:Glucans; D010936:Plant Extracts; C009109:pullulan