Effect of pre-packaging on asparagus quality after simulated transportation and marketing

摘要: Abstract The effects of different polymeric films used as punnet overwraps on the quality fresh green asparagus (Asparagus officinalis L.) were evaluated under conditions similar to those experienced during export by air Japan, followed 6 days simulated marketing. Two perforated and two non-perforated used. After marketing, unwrapped spears wrapped with 4.1% polypropylene (PY-30) film unuseable while market packaged 0.3% (PY-1), plasticised polyvinylchoride (PVC) heat-shrink polyolefin (XDR) was fair good. Non-perforated produced a modified atmosphere inside package. During transit, composition in PVC packages 5–6% CO2 15–16% O2. In course equilibrated at 2–3% 18–19% Atmosphere modification greater XDR packages, being 14–15% 4–5% O2 transport 6–7% after major effect pre-packaging slowing deterioration reduce moisture loss. Further improvement from attributed effects. Higher than normal levels in-package retarded pathogen growth, tip opening and, for spears, fibre development. PY-1 best described here. is not recommended, some injured excessive accumulation or depletion. PY-30 did keep loss an acceptable level.