Lub neej txee siab tshaj plaws ntawm King Trumpet Mushrooms (Pleurotus eryngii)

Lub sijhawm khaws cia ntawm huab tais trumpet nceb nyob ntawm qhov chaw khaws cia thiab kev kho mob tom qab sau qoob. Hauv qab no yog cov txheej txheem kho kom zoo uas txhawb nqa los ntawm kev tshawb fawb txog kev khaws cia zaub mov (IFT, 2022) thiab USDA cov lus qhia:

1. Txuj tub yees

• KubKev kub ceev: 0-2 ° C (± 0.5 ° C)
• Cov av nooYog ': 90-95% RH
• Ntim: Perforated polyethylene hnab (5-8 qhov / cm²)
• Txee lub neej:
  • Tag nrho cov nceb: 12-14 hnub (yuag poob <3%)
  • Sliced ​​nceb: 7-9 hnub (tswj microbial suav <10⁴ CFU/g)

Qhov tseem ceeb: CO₂ concentration ≤2000 ppm los tiv thaiv kev ua pa anaerobic.

2. Modified Atmosphere Ntim (MAP)

• Gas Composition5% O₂ + 10% CO₂ + 85% N₂
• Hom zaj duab xisBOPP / PE laminated zaj duab xis (OTR: 3000-4000 cm³ / m²·24h·atm)
• Txee lub neej:
  • 18-21 hnub (tsis pom xim av lossis sliminess)
  • Polyphenol oxidase kev ua haujlwm txo los ntawm 65%

Kev lees paub: ATP bioluminescence tests paub meej tias freshness (RLU <800).

3. Nqus Precooling + Freezing

• Ua ntej txias: Txo cov tub ntxhais kub mus rau 4 ° C hauv 30 min
• khovIQF ntawm -35 ° C → Cia ntawm -18 ° C
• Txee lub neej:
  • 10-12 lub hlis (cov ntaub ntawv khaws cia> 80%)
  • Tsis muaj cov khoom noj tseem ceeb poob (protein ≥92%, polysaccharides ≥88%)

Kev Tswj Xyuas Zoo: Blanching (95 ° C / 2 min) ua ntej khov inhibits enzymatic browning.

4. Siv tau txheej tshuab

• Txheej Txheej1.5% chitosan + 0.2% nano-SiO₂
• Cov txiaj ntsig:
  • ncua lub hau qhib los ntawm 5-7 hnub
  • Txo qhov ua pa ntawm 40%
  • Ua kom ruaj khov (≥12 N puncture force)