DRY GOOSEBERRY (Physalis peruviana L) WITH PRETREATMENT OF OSMOTIC DEHYDRATION

  • Adriana M. CASTRO
  • Ligia RODRÍGUEZ
  • Edgar M. VARGAS
Keywords: Air drying, cape gooseberry (Physalis peruviana L), β-carotene, osmotic dehydration,

Abstract

This study find the air temperatures for dehydrating Cape gooseberry, (Physalis peruviana L), with

osmotic dehydration as a pretreatment, using a solution of sucrose of 70 o Brix to 40 oC by 16 hours. The

highest level of β-carotene degradation, 98%, due to the effects of oxygen, temperature and provitamin

lixiviation, takes place with the pretreated fruits, which dry at 60ºC. Lixiviation contributes to 80% of

this. The fruits without pretreatment and dry at a temperature of 40ºC suffer a lower level of β-carotene

degradation, 28%. The times for the untreated fruit, to reach a moisture level close to 2.5%, decrease as

the air temperature increase (40, 50 y 60ºC, 12, 9 and 7 hours respectively). In the case of the pretreated

fruit, the drying times are 4, 5, and 6 hours for 60, 50 y 40ºC respectively. Degradation kinetic is first

order. The economic study find that the cost for dehydrating at 60°C for the untreated fruit was the most

suitable with an approximately cost of $374.42/Kg of fruit.

|Abstract
= 11 veces | PDF (ESPAÑOL (ESPAÑA))
= 38 veces|

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Published
2009-02-17
How to Cite
CASTRO A. M., RODRÍGUEZ L., & VARGAS E. M. (2009). DRY GOOSEBERRY (<I>Physalis peruviana</I&gt; L) WITH PRETREATMENT OF OSMOTIC DEHYDRATION. Vitae, 15(2). Retrieved from https://revistas.udea.edu.co/index.php/vitae/article/view/794
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