Ole maualuga ole ola ole fa'ato'aga o le King Trumpet Mushrooms (Pleurotus eryngii)

O le umi o le fa'asaoina o le pu king mushroom e fa'alagolago i tulaga e teu ai ma togafitiga pe a uma le seleselega. O lo'o i lalo fa'atonuga fa'apitoa e lagolagoina e su'esu'ega fa'asao mea'ai (IFT, 2022) ma ta'iala USDA:

1. Fa'aa'a'ai Fa'atonu

• vevela: 0–2°C (±0.5°C)
• Susū: 90–95% RH
• afifiina: Ato polyethylene fa'alava (5–8 pu/cm²)
• Ola Fa'asa:
  • Suami atoa: 12–14 aso (pa'u mamafa <3%)
  • tipi tiga: 7–9 aso (pulea microbial faitau <10⁴ CFU/g)

Fa'aautū: CO₂ fa'asa'o ≤2000 ppm e taofia ai le manava fa'aanaerobic.

2. Fa'apipi'iina o Atmosphere Fa'afouina (MAP)

• Tulaga kasa: 5% O₂ + 10% CO₂ + 85% N₂
• Ituaiga Ata Ata: BOPP/PE ata fa'apipi'i (OTR: 3000–4000 cm³/m²·24h·atm)
• Ola Fa'asa:
  • 18-21 aso (leai se lanu enaena po'o le sliminess)
  • Polyphenol oxidase gaioiga faʻaititia ile 65%

Fa'amaoniga: ATP bioluminescence suʻega faʻamaonia fou (RLU <800).

3. Vacuum Precooling + Aiisa

• Fa'amalo: Fa'aitiitia le vevela ile 4°C ile 30 min
• Aisaisa: IQF ile -35°C → Teuina ile -18°C
• Ola Fa'asa:
  • 10–12 masina (tuuina o le tino>80%)
  • Leai se mea'ai gau tele (porotini ≥92%, polysaccharides ≥88%)

Puleaina lelei: Fa'asalaina (95°C/2 min) a'o le'i fa'aaisa e taofia ai le fa'aenaenaina o le enzymatic.

4. Edible Coating Technology

• Fuafua Fa'afuifu: 1.5% chitosan + 0.2% nano-SiO₂
• Faamanuiaga:
  • Fa'atuai le tatalaina o le pulou ile 5-7 aso
  • Fa'aitiitia le manava ile 40%
  • Fa'amausaliina (≥12 N malosi tu'i)