Quality and shelf life of fresh-cut asparagus (Asparagus officinalis L.) In different packaging films
S. Keil, R. Kadau
ISHS Acta Horticulturae 600: 787-790.
2003
บทคัดย่อ
Different packaging films varying in their permeabilities for CO2 and O2 were used to study the effects on gas concentration and characteristic quality attributes of fresh-cut peeled and unpeeled asparagus (Asparagus officinalis L.) during shelf life of 4 days at 10°C and 95% RH, simulating commercial transport and marketing conditions. Unpeeled asparagus showed a higher loss of fresh weight (2-4%) in comparison to peeled and wrapped spears (<1%). Moreover, an undesirable increase in firmness occured in unpeeled spears after 4 days of shelf life which was associated with changes in the insoluble:soluble pectin ratio and the increase of lignin. Packages with micorperforation developed an internal atmosphere leading to a retention of product quality in respect to fresh weight, firmness, textural properties and sugar/acid ratio, and thus a reduction of deterioration and prolonged shelf life.