30results about How to "Meet safety and health requirements" patented technology

The invention discloses a preparation method of sweet potato protein polypeptides. The method comprises the following steps: cleaning and peeling sweet potatoes, pulverizing, adding water, extracting, filtering, and carrying out centrifugation and ultrafiltration concentration to obtain a sweet potato protein solution; by using the sweet potato protein solution as the main substrate and adopting a microbial multi-step fermentation technique, adding Aspergillus niger and Bacillus subtilis, fermenting, and carrying out centrifugation and ultrafiltration concentration to obtain a sweet potato protein polypeptide solution; and carrying out reduced pressure distillation concentration and vacuum freeze drying to obtain the sweet potato protein polypeptides. The sweet potato protein polypeptides have the advantages of fine particles, uniform appearance, high hydrolysis degree (up to 38.5%), short peptide chains and stable performance, and the molecular weight is 6.2-8.1kDa. The growth and metabolism characteristics of different microbes are utilized to greatly enhance the polypeptide yield. The method has the advantages of simple and controllable technical process and low cost, and can easily implement large-scale industrial production.

The invention provides a two-piece can production method, which comprises the following steps of: sequentially conducting ink printing, curing, gloss oil coating and curing operations to a film-covered iron base material; drying color-printed film-cover iron for 30 seconds to 3 minutes at 190-230DEG C, then cooling the color-printed film-cover iron to room temperature, drying below 100DEG C till the surface of the color-printed film-cover iron does not have obvious water; sequentially conducting blanking, cup punching, drawing and bottom punching operations to the color-printed film-cover iron; and finally and integrally connecting a can body and a can bottom to obtain the two-piece can. The two-piece can production method is scientific and reasonable, the defects of the prior art are overcome, and the environmental friendliness and the low energy consumption of the production process are realized; and the two-piece can produced by adopting the method has excellent mechanical performance and appearance, and satisfies requirements on food safety and hygiene.

A method of extracting kiwi fruit proteinase is disclosed. The invention employs 0.1-0.5% green tea polyphenols solution as precipitator, the volume ratio of green tea polyphenols solution with kiwi fruit juice is 0.8-1.1:1. Compared with the prior arts, the invention has merit of high yield, simple process, short period, low cost, innocuity etc, which is suitable for industrialized production of kiwi fruit proteinase.

The invention relates to an automatic feeding system of an intelligent cooking device. The automatic feeding system of the intelligent cooking device comprises an outer electronic control system, a non liquid feeding mechanism and a liquid feeding mechanism, wherein the non liquid feeding mechanism comprises a base, a turntable, at least one first feed barrel, a squeezing mechanism and at least one conveying mechanism, and the squeezing mechanism is arranged on the base, and squeezes and contacts with the outer side walls of the first feed barrels; the liquid feeding mechanism comprises a bracket, at least a vessel, at least one peristaltic pump and a discharging plate, and the vessels and the peristaltic pumps are arranged in a one-to-one correspondence mode; the discharging plate is provided with discharging collecting ports which have a one-to-one correspondence to the peristaltic pump, and the discharging plate is installed at the base; the turntable, a first motor, the squeezing mechanism and the peristaltic pumps are electronically connected to the outer electronic control system respectively. The automatic feeding system of an intelligent cooking device can effectively solve the problems of manpower consumption and imprecise measurement brought by traditional manual feeding of dressing, and the efficiency and the cost are greatly improved.

The invention discloses a label manufacturing process for a plastic container, the plastic container and the application thereof. The label manufacturing process comprises the steps that the PET plastic container with the surface tension being 44-52dyn / cm is located, silk-screen printing is carried out, and then ultraviolet light instant curing is carried out; printing ink of silk-screen printing is ultraviolet curing ink comprising photo-initiator; silk-screen tightening tension of silk-screen printing is 25-35N / cm. According to the label manufacturing process, printing firmness is high, the amount of residual solvents is small, and the requirement for safety and sanitation of food packaging can be met. Meanwhile, the label manufacturing process can well adapt to the follow-up liquid drink cleaning, disinfecting and bulking automatic production line.

The invention discloses an adsorbent for selectively reducing the release amount of volatile carbonyl and phenol compounds in cigarette smoke and a preparation method and application of the adsorbent. The preparation method comprises the following steps of: preparing an aqueous solution of inorganic metal salt, directly spraying the aqueous solution on the surface of any one carrier material of activated carbon fibers, a zeolite molecular sieve, sepiolite, activated carbon and the like, performing drying treatment and preparing the adsorbent. When the adsorbent is applied to cigarettes in a binary composite filter stick form, the release amount of multiple volatile carbonyl compounds and phenol compounds in main stream smoke of the cigarettes can be greatly reduced while the sensory quality of the cigarettes is not obviously influenced. The adsorbent has the obvious effect of selectively reducing the cigarette harm, is extremely simple in preparation process, low in cost and safe, has the effect of environment protection, and has wide application prospects in the field of cigarette harm reduction, and the large-scale industrial production of the adsorbent is easily realized.