ศูนย์นวัตกรรมเทคโนโลยีหลังการเก็บเกี่ยว

Quality and physiological changes of fennel under controlled atmosphere storage.

Artes, F., Escalona, V. H. and Artes-Hdez, F.

European Food Research and Technology. Volume 214, Number 3, 2002. Pages 216-220.

2002

บทคัดย่อ

Fennel (Foeniculum dulce f. vulgare) cv. 'Orion' was stored up to 11 days at 0 or 5 deg C and 90-95% relative humidity (RH), under controlled atmosphere (CA) of 5% O2+0% CO2 and 5% O2+5% CO2 (N2 as the balance gas). In cv. 'Clio', CA of 5% O2+5% CO2 and 5% O2+20% CO2 for 14 days at 0 deg C and 90-95% RH were applied. As control, cold storage in air for 3-4 days at 15 deg C and 60-70% RH in air was applied to both cultivars. A low to moderate non-climacteric respiratory activity in both fennel cultivars was found. When temperature decreased from 5 to 0 deg C as well as when CA was applied, a decrease on respiratory activity was observed. Respiration rates in 'Orion' were always higher than in 'Clio'. Heat production rates under different storage conditions were calculated. No fungal attacks developed in any treatment at any moment. Both fennel cultivars were insensitive to low O2 and high CO2. No differences were found in visual appearance, aroma, flavour and texture after storage and in shelf life of 'Orion' under all stated conditions. At the end of the cold storage in air, browning of the butt end cut and of the external leaves was observed in bulbs which were previously stored at 0 deg C; browning was lower in 'Clio' than in 'Orion'. However, these disorders were inhibited under CA. For bulbs stored at 5 deg C, only cv. 'Orion' under 5% O2+5% CO2 was marketable. Quality attributes change under CA storage, respiratory activity and heat production rates of fennel are first reported here.