Method using Rhodiola rosea liquid-submerged fermentation to produce rhodioloside
A liquid submerged fermentation and salidroside technology, which is applied in the field of Rhodiola submerged fermentation to produce salidroside, can solve the problems of low yield of secondary metabolites, long chemical synthesis route, and low content, and achieve high yield High efficiency, low price, and simple operation
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experiment example 1
[0041] In this experimental example, in the method for producing salidroside by liquid submerged fermentation of Rhodiola rosea, experiments were carried out at different fermentation times to determine a reasonable fermentation time. Except fermentation time, other fermentation conditions etc. all adopt the optimal experiment condition that the present invention proposes. Specifically, this experimental example uses the following steps:
[0042] (1) Get Monascus bacterial classification, be inoculated in the Erlenmeyer flask that liquid seed culture medium is housed (the bacterial classification inoculum amount is 5%), loading capacity 50ml / 250ml, under the temperature of 28 ℃, with the rotating speed of 180r / min Cultivate on a shaker for 14 hours to obtain a seed culture solution; wherein, by weight percentage, the liquid seed culture medium is prepared from the following raw materials: 1.5% peptone, 3% glucose, Mg 2 SO 4 ·3H 2 O0.5%, the balance is water;
[0043] (2) I...
Embodiment 1
[0047] This example provides a method for producing salidroside by liquid submerged fermentation of Rhodiola rosea. Specifically, the method includes the following steps:
[0048] (1) get Monascus bacterial classification, be inoculated in liquid seed culture medium (bacteria classification inoculation amount is 5%), loading capacity 50ml / 250ml, at the temperature of 28 DEG C shaker culture 13 hours, obtain seed culture liquid; Wherein , by weight percentage, the liquid seed medium is prepared from the following raw materials: peptone 1.5%, glucose 3%, Mg 2 SO 4 ·3H 2 O 0.5%, the balance is water;
[0049] (2) Inoculate the seed culture solution prepared in step (1) into 1L of liquid fermentation medium (the inoculum size is to inoculate 50ml of seed culture solution per liter of liquid fermentation medium), and ferment on a shaking table at a temperature of 28°C Cultivate for 48 hours to obtain a fermentation medium; by weight percentage, the liquid fermentation medium is...
Embodiment 2
[0053] This example provides a method for producing salidroside by liquid submerged fermentation of Rhodiola rosea. Specifically, the method includes the following steps:
[0054] (1) get Monascus bacterial classification, be inoculated in liquid seed culture medium (bacteria classification inoculation amount is 5%), loading capacity 50ml / 250ml, shake table culture at 30 ℃ of temperature for 14 hours, obtain seed culture liquid; Wherein , by weight percentage, the liquid seed medium is prepared from the following raw materials: peptone 1.5%, glucose 3%, Mg 2 SO 4 ·3H 2 O 0.05%, the balance is water;
[0055] (2) Inoculate the seed culture solution prepared in step (1) into 1L of liquid fermentation medium (the inoculum size is to inoculate 50ml of seed culture solution per liter of liquid fermentation medium), and ferment on a shaking table at a temperature of 30°C Cultivate for 12 hours to obtain a fermentation medium; by weight percentage, the liquid fermentation medium ...
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