Engaged in construction in the 1970s [MTL]

Chapter 25 Remorse

The purification process of vitamin C was quite smooth, and after the secondary fermentation was completed, Ye Ling extracted the fermentation filtrate, and Qin Chunsheng personally operated the purification of vitamin C.

Qin Chunsheng was still babbling to himself, but when he saw that the layers of vitamin C powder were precipitated from the filtrate, the words that came to his mouth became choked.

As if he was afraid that Ye Ling would see his gaffe at this time, Qin Chunsheng took a deep breath, suppressed the emotions that were about to roll in his chest and seemed to be about to gush out, and said to Ye Ling, "Ye girl, we, we really succeeded......"

After the more and more clear filtrate is sucked away by a pipette pump, nearly 15 cm thick vitamin C slurry has accumulated under the transparent fermenter, and it is sent to a vacuum drying oven for low-temperature drying to become vitamin C powder.

Qin Chunsheng was so moved that he wanted to share this happiness with Ye Ling, but he couldn't get Ye Ling's response for a long time, turned his head and saw Ye Ling holding a knife to cut a large piece of purple-red things.

He leaned over curiously and asked Ye Ling, "Ye girl, what is this?" "

"This is a whitening cleansing soap, which is added with roselle extract and vitamin C derivatives, and uses the oil in the soap body itself to properly wrap these two ingredients, which can not only ensure the cleansing ability of the soap, but also replenish the oil for the skin in time, so that the skin will not be tight due to excessive cleansing."

"In this layer of oil film that the cleansing soap supplements for the skin, roselle extract and vitamin C derivatives will continue to play a role, which can make people's skin look a lot fairer, and the skin that is prone to dermatitis will be able to use this cleansing soap after using this cleansing soap, because the roselle extract added in it has an anti-inflammatory effect, and the vitamin C derivatives can effectively improve the skin's immunity, and dermatitis will also be effectively relieved.

Qin Chunsheng's family conditions are not bad, his wife, daughter-in-law, and daughters will buy skin care products, including the very popular 'Shuangshu' sold in Shanghai, the very popular 'French soap' sold in foreign exchange stores, and the 'shampoo' produced in Chouguo, although he himself is not interested in these things, but he still knows the value of these things.

At this time, seeing that Ye Ling said a piece of fuchsia soap to the truth, Qin Chunsheng was also interested, and he asked Ye Ling, "Can you give me a piece?" I brought it home for my daughter's use? She teaches at the National People's Congress, and she usually likes to buy these. You have a pharmaceutical background, and you have a good foundation in fine chemicals, so maybe this soap is better than that 'French soap'. "

Ye Ling smiled, took out two other pieces of soap made by himself from the drawer, and handed them to Qin Chunsheng, "Uncle Qin, this white piece is for laundry, dark green is for mosquito prevention, it can be used for bathing, the effect of mosquito bites should not be wrong, it has been tested in practice in the Great Northern Wilderness before, I smell this smell is enough, even if it is not used for bathing, it should be able to repel insects if it is placed in the house." "

Qin Chunsheng weighed the weight of the three pieces of soap, put them under the tip of his nose and smelled them, and said in surprise: "This smell is quite good, I smell it and think it is no worse than the 'French soap' used by my daughter." "

"You go back and use it first, mainly to let Aunt Qin and your daughter-in-law try that piece of white soap, this piece should be quite popular."

Ye Ling is quite confident in the vitamin C derivatives she developed, the original vitamin C is easy to be oxidized and inactivated by light, but the nature of vitamin C derivatives is more stable, plus the skin-friendly oil added to the white soap, which can form a thin oil film on the human face, and the vitamin C derivatives are sealed in the skin, resisting photooxidation during the day, and carrying out intensive whitening repair at night.