Process for producing citric acid caseins by using yak milk dregs as raw materials

Process for producing citric acid caseins by using yak milk dregs as raw materials

  • CN 103,073,630 A
  • Filed: 01/23/2013
  • Published: 05/01/2013
  • Est. Priority Date: 01/23/2013
  • Status: Active Application
First Claim
Patent Images

1. one kind take the technique of yak milk slag as the raw material to produce citric acid casein food grade, it is characterized in that step is as follows:

  • (1) from yak milk, behind the extraction butter, after fermentation, cohesion and precipitation, squeezes and the slag raw material of must suckling;

    (2) the slag raw material of will suckling adds in 40 ℃

    of water, adds concentration again and is 7.5% sodium hydroxide solution to compound pH value in water and reach 9.6, is heated to 55 ℃

    , adds colour protecting agent, dissolve 40-60 minute, dissolves end;

    (3) with the visible impurity of lysate process reciprocating sieve filtering naked eyes, separate with separating centrifuge again, the filtering fine impurities, the control flow is no more than 6000 kg/hours;

    (4) step (3) gained filtrate is carried out centrifugal degreasing with separating centrifuge again, the control flow is no more than 3000 kg/hours, except degrease and impurity;

    (5) step (4) gained filtrate obtains the feed liquid of killing microorganisms 90 ℃



    95 ℃

    lower maintenances 2~

    8 seconds;

    (6) after being cooled to 40~

    43 ℃

    , feed temperature enters sour cylinder, stir, treat sour cylinder edge lather collapse, when temperature is down to 40~

    42 ℃

    , slowly adding degree Beaume is citric acid accent pH to 3.8~

    4.1 of 2.8-3.4,8-12 minute acid adding time, acid adding leaves standstill 20~

    30min after finishing, and makes the abundant coagulative precipitation of casein;

    (7) throw out cleans 1 time with 40 ℃

    of warm water, sloughs lactose;

    Clean 1 time with cold water again, slough whey;

    (8) dewater with plate-and-frame filter press, the spiral pump flow is not less than 7000 kg/hours, and filter cloth density is 750B, and moisture takes off to 30%;

    (9) make granulator with 10 purposes and carry out the material granulation;

    (10) material of granulation is poured into suction type fluidized drying case, descended dry 40-50 minute at 60 ℃

    ;

    (11) dry later product pulverize, screening, classification, the qualified finished product that is of quality inspection.

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