KOREAN JOURNAL OF PACKAGING SCIENCE & TECHNOLOGY (한국포장학회지)

Korea Society of Packaging Science and Technology (한국포장학회)
권호 표지

Freshness Extension of 'Fuji' Apple Packed with Expanded Polystyrene Form Box

Expanded Polystyrene Box로 포장한 후지 사과의 신선도

  • Park, Hyung-Woo (Korea Food Research Institute, Korea Styrene Foam Recycling Association) ;
  • Park, Jong-Dae (Korea Food Research Institute, Korea Styrene Foam Recycling Association) ;
  • Kim, Dong-Man (Korea Food Research Institute, Korea Styrene Foam Recycling Association) ;
  • Choi, Jo-Shep (Korea Food Research Institute, Korea Styrene Foam Recycling Association)
  • Published : 2000.03.30
Download PDF
⟨ Previous Next ⟩

Abstract

This study was measured weight loss, total ascorbic acid, titratable acidity, and soluble solids content to investigate the effect of EPS(expanded polystyrene foam) box, LDPE film pouches and double wall corrugated fiberboard box during storage at $20^{\circ}C$. Weight loss of apple packed with corrugated paperboard box after 40 days storage was 5.7%, and those of LDPE, CE film and EPS box were 0.2-0.5%. Ascorbic acid content of apple packed with LDPE, CE, EPS was higher than that of control. Titratable acidity and total soluble solid content of control were changed 40% and 10%, and the EPS were changed 27% and 4%, respectively. Overall appearances of 'Fuji' apple packed with LDFE, CE and EPS were better than that of control.

개발한 EPS 포장상자가 사과의 신선도 유지효과 기능이 있는지의 여부를 조사코자 사과를 포장하여 $20^{\circ}C$ 저장하면서 골판지상자와 0.02와 0.04mm 두께의 LDPE 필름, 기능성 MA필름과 50배로 발포시킨 EPS상자에 사과를 15kg씩 포장하여 포장재간의 신선도 유지효과를 비교하였다. 저장 40일 후 중량감소는 대조구는 5.7%, EPS 상자는 0.5%의 중량감소가 나타났고, 비타민C도 2.06과 2.31 mg%로 EPS 포장구가 높게 유지되고 있었다. 당도와 산도는 포장구간에 큰 차이가 없었으며 부패의 경우 대조구는 상자당 3-5개과가 발생했으나 EPS포장구는 발생하지 않았으며 외관도 양호한 것으로 나타났다.

Keywords