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| Production of low-temperature peanut meal：One-step extraction technology of peanut |
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| DOI：10.19902/j.cnki.zgyz.1003-7969.240519 |
| KeyWord:peanut low-temperature peanut meal one-step extraction nitrogen solubility index (NSI) |
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| Abstract: |
| In order to obtain low-temperature peanut meal with high nitrogen solubility index (NSI), red peanut kernel was used as raw material, and the effects of conditioning on the quality of peanut kernel flake, extraction process and NSI of low-temperature meal were studied by simulating the one-step extraction process of peanut kernel in laboratory. The results showed that after conditioning, the moisture content of peanut kernel decreased from 7.22% to 6.06%, and the powder degree of flake increased. After 5-level gradient miscella extraction (including fresh solvent extraction), the residue oil of low-temperature meal produced by the conditioned flake was 1.67%, while that produced by the non-conditioned flake was 3.67%, but the miscella produced by the non-conditioned flake was low in solids content. The NSI of the low-temperature meal obtained by the conditioned flake was 74%. To sum up, the conditioning process can be adopted so as to obtain low-temperature peanut meal with low residual oil and high NSI. |
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