Role of UV - B irradiation dose and intensity on color retention and antioxidant elicitation in broccoli florets (Brassica oleracea var. Italica)
Postharvest UV exposure has been useful to i) delay senescence and ii) induce the accumulation of bioactive compounds in some vegetable species. However, no studies have been conducted to determine the treatment conditions (radiation dose and intensity) required to maximize these two diverse respons...
| Otros Autores: | , , , , , , |
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| Formato: | Artículo |
| Lenguaje: | Inglés |
| Materias: | |
| Acceso en línea: | http://ri.agro.uba.ar/files/intranet/articulo/2017darre.pdf LINK AL EDITOR |
| Aporte de: | Registro referencial: Solicitar el recurso aquí |
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| 999 | |d 45552 | ||
| 999 | |d 45552 | ||
| 999 | |d 45552 | ||
| 022 | |a 0925-5214 | ||
| 024 | |a 10.1016/j.postharvbio.2017.02.003 | ||
| 040 | |a AR-BaUFA | ||
| 245 | |a Role of UV - B irradiation dose and intensity on color retention and antioxidant elicitation in broccoli florets (Brassica oleracea var. Italica) | ||
| 520 | |a Postharvest UV exposure has been useful to i) delay senescence and ii) induce the accumulation of bioactive compounds in some vegetable species. However, no studies have been conducted to determine the treatment conditions (radiation dose and intensity) required to maximize these two diverse responses. In this work, we evaluated the effect of UV-B irradiation intensity (Control: 0, Low: 3.2, Medium: 4.0 and High: 5.0 W/m2) and dose (0, 2, 4, 8, 12 kJ/m2) on quality retention and antioxidant capacity of fresh broccoli florets during storage (4 C for 17 days). Exposure to Low UV-B radiation and dose (2, 4 kJ/m2) reduced broccoli weight loss, delayed yellowing and improved chlorophyll and chlorophyllide retention. After long term storage, no marked improvement on the antioxidant capacity was found regardless of the irradiation condition. Evaluations at short time after UV-B exposure (0, 2, 6, 18 h) indicated that the treatments elicited antioxidant accumulation. Greatest antioxidant capacity was found in broccoli subjected to High intensity UV-B. Increased levels of aliphatic glucosinolates were found 18 h after the UV-B irradiation, whereas phenolic antioxidants peaked 6 h after the treatment. Results showed that Low UV-B doses and intensities delayed chlorophyll degradation and may be useful to complement refrigeration in fresh broccoli. Instead, High intensity UV-B exposure may be better suited as a pre-treatment to increase the antioxidant capacity prior to further processing such us freezing. | ||
| 653 | |a IRRADIATION | ||
| 653 | |a CHLOROPHYLL | ||
| 653 | |a BIOACTIVE COMPOUNDS | ||
| 653 | |a PHENOLICS | ||
| 653 | |a GLUCOSINOLATES | ||
| 700 | 1 | |a Darré, Magalí |u CIDCA (Centro de Investigación y Desarrollo en Criotecnología de Alimentos) (CCT La Plata CONICET, CIC-PBA, UNLP), Calles 47 y 116, CP 1900, La Plata, Argentina |9 67258 | |
| 700 | 1 | |a Valerga, Lucía |u CIDCA (Centro de Investigación y Desarrollo en Criotecnología de Alimentos) (CCT La Plata CONICET, CIC-PBA, UNLP), Calles 47 y 116, CP 1900, La Plata, Argentina |9 67259 | |
| 700 | 1 | |a Ortiz Araque, Leidy C. |u CIDCA (Centro de Investigación y Desarrollo en Criotecnología de Alimentos) (CCT La Plata CONICET, CIC-PBA, UNLP), Calles 47 y 116, CP 1900, La Plata, Argentina y LIPA. (Laboratorio de Investigación en Productos Agroindustriales), (Facultad de Ciencias Agrarias y Forestales, UNLP), Calles 60 y 119, CP 1900, La Plata, Argentina |9 67260 | |
| 700 | 1 | |a Lemoine, María L. |u CIDCA (Centro de Investigación y Desarrollo en Criotecnología de Alimentos) (CCT La Plata CONICET, CIC-PBA, UNLP), Calles 47 y 116, CP 1900, La Plata, Argentina y LIPA. (Laboratorio de Investigación en Productos Agroindustriales), (Facultad de Ciencias Agrarias y Forestales, UNLP), Calles 60 y 119, CP 1900, La Plata, Argentina |9 67261 | |
| 700 | 1 | |9 35030 |a Demkura, Patricia Verónica |u IFEVA (Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura) (CONICET, UBA),Av. San Martín 4453, C1417DSE, Buenos Aires, Argentina | |
| 700 | 1 | |9 42627 |a Vicente, Ariel R. |u CIDCA (Centro de Investigación y Desarrollo en Criotecnología de Alimentos) (CCT La Plata CONICET, CIC-PBA, UNLP), Calles 47 y 116, CP 1900, La Plata, Argentina y LIPA. (Laboratorio de Investigación en Productos Agroindustriales), (Facultad de Ciencias Agrarias y Forestales, UNLP), Calles 60 y 119, CP 1900, La Plata, Argentina | |
| 700 | 1 | |a Concellón, Analía |u CIDCA (Centro de Investigación y Desarrollo en Criotecnología de Alimentos) (CCT La Plata CONICET, CIC-PBA, UNLP), Calles 47 y 116, CP 1900, La Plata, Argentina |9 44377 | |
| 773 | |t Postharvest Biology and Technology |g Vol.128 (2017), p.76-82, grafs., tbls. | ||
| 856 | |f 2017darre |i En Reservorio |q application/pdf |u http://ri.agro.uba.ar/files/intranet/articulo/2017darre.pdf |x ARTI201806 | ||
| 856 | |u https://www.elsevier.com |z LINK AL EDITOR | ||
| 942 | |c ARTICULO | ||
| 942 | |c ENLINEA | ||
| 976 | |a AAG | ||