Method for producing ARA grease rich in chrome
A production method and oil technology, applied in the field of chromium-rich ARA oil production, can solve problems such as poor blood sugar control, and achieve the effect of preventing diabetic complications
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Embodiment 1
[0029] A method for producing chromium-rich ARA grease, the steps are as follows:
[0030] ⑴ Bacteria activation culture
[0031] The slant medium formula is as follows:
[0032] 30g potatoes, 2g glucose, 0.25g chromium-enriched yeast powder, 1.5g agar, 100ml water;
[0033] The activation of Mortierella alpina strains was cultured on a slant, with a culture temperature of 28°C and a culture time of 7 days;
[0034] ⑵ shake flask culture
[0035] The volume concentration of the shake flask medium formula is as follows:
[0036] Glucose 20g / L, chromium-enriched yeast powder 2.5g / L;
[0037] Use slant strains for liquid shake flask culture, the culture temperature is 28°C, the rotation speed is 140rpm, and the culture time is 7 days;
[0038] ⑶ fermentation culture
[0039] The volumetric concentration of the fermentation medium is as follows:
[0040] Glucose 30g / L, chromium-enriched yeast powder 20g / L;
[0041] ①First-level fermentation culture: transfer the shake flas...
Embodiment 2
[0048] A method for producing chromium-rich ARA grease, the steps are as follows:
[0049] ⑴ Bacteria activation culture
[0050] The slant medium formula is as follows:
[0051] 30g potato, 4g glucose, 0.5g chromium-enriched yeast powder, 2g agar, 100ml water;
[0052] The activation of Mortierella alpina strains was cultured on a slope with a culture temperature of 30°C and a culture time of 10 days;
[0053] ⑵ shake flask culture
[0054] The volume concentration of the shake flask medium formula is as follows:
[0055] Glucose 40g / L, chromium-enriched yeast powder 5g / L;
[0056] Use slant strains for liquid shake flask culture, culture temperature 30°C, rotation speed 200rpm, culture time 10 days;
[0057] ⑶ fermentation culture
[0058] The volumetric concentration of the fermentation medium is as follows:
[0059] Glucose 60g / L, chromium-enriched yeast powder 30g / L;
[0060] ①First-level fermentation culture: transfer the shake flask strain in step ⑵ into a ferme...
Embodiment 3
[0067] A method for producing chromium-rich ARA grease, the steps are as follows:
[0068] ⑴ Bacteria activation culture
[0069] The slant medium formula is as follows:
[0070] Potato 30g, glucose 3g, chromium-enriched yeast powder 0.38g, agar 1.75g, water 100ml;
[0071] Mortierella alpina strains were activated by cultured on a slant, with a culture temperature of 29°C and a culture time of 8 days;
[0072] ⑵ shake flask culture
[0073] The volume concentration of the shake flask medium formula is as follows:
[0074] Glucose 30g / L, chromium-enriched yeast powder 3.8g / L;
[0075] The slant strain was used for liquid shake flask culture, the culture temperature was 29°C, the rotation speed was 170rpm, and the culture time was 9 days;
[0076] ⑶ fermentation culture
[0077] The volumetric concentration of the fermentation medium is as follows:
[0078] Glucose 45g / L, chromium-enriched yeast powder 25g / L;
[0079] ①First-level fermentation culture: transfer the shak...
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