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5 protocols using potassium sodium tartrate

1

Antimicrobial Cassava Starch Biopolymer

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Cassava starch and octenyl succinate cassava starch ester are self-made in the laboratory; Chitosan (degree of deacetylation ≥ 90%) comes from Hefei Bomei Biotechnology Co., Ltd; Octenyl succinic anhydride comes from Guangzhou Guangjia Chemical Co., Ltd; Zinc oxide (particle size 30 nm) comes from cool chemistry; Sodium hydroxide, silver nitrate, glycerol, petroleum ether and absolute ethanol all come from Xilong science; 3,5-Dinitrosalicylic acid comes from Tianjin Dalong Chemical Reagent Factory; ε- Polylysine, hydrochloric acid, phenolphthalein, crystalline phenol, sodium bisulfite, potassium sodium tartrate, LB medium, agar and methyl orange were all purchased from Sinopharm Chemical Reagent Co., Ltd. PBS buffer solution (pH = 6.8) was purchased from Lvyuan Biotechnology Co., Ltd. the reagents were all analytical pure. Mouse embryonic fibroblasts) are from Wuhan prosai biotechnology company; Fetal bovine serum was purchased from Hangzhou Sijiqing; DMEM culture medium was purchased from Beijing solebao; Cell counting kit-8 was purchased from Shanghai Yisheng; E.coli and S.aureus come from Guangdong huankai Biotechnology Co., Ltd.
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2

Characterization of FGD Gypsum Crystals

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Potassium sodium tartrate, aluminum sulfate, sulfuric acid and sodium hydroxide were all purchased from Sinopharm Chemical Reagent CO., Ltd., Shanghai, China. The chemical component of the FGD gypsum was collected from Beijing Guohua Electric Power Corporation (Beijing, China), as shown in Table 1. The XRD pattern of FGD gypsum is provided in Figure 1, revealing DH as the main component. Figure 2 shows the morphology of the FGD gypsum crystals, which is a thick plate shape and obviously different from α-HH crystals.
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3

Sludge Treatment Using Polymeric Ferric Sulfate

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Polymeric ferric sulfate, ammonium molybdate, silver sulfate, ferric nitrate, cerium nitrate, cobalt nitrate, potassium sodium tartrate, and ascorbic acid were all of analytical grade and were purchased from Sinopharm Chemical Reagent Co., Ltd. (Shanghai, China). Mercury sulphate and potassium antimony tartrate were all of analytical grade and were purchased from Shanghai McLean Biochemical Co., Ltd. (Shanghai, China). The fly ash was taken from a coal chemical enterprise in Jiangsu. Cationic polyacrylamide (CPAM) was purchased from Jiangyin Huadong Water Treatment Co., Ltd. (Wuxi, China). The actual sludge water sample was taken from a sewage treatment plant in Jiangsu, and the original sludge quality is shown in Table 1.
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4

Brewing Process for Japonica Rice Wine

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Japonica rice was obtained from COFCO Corporation. Wuchang glutinous rice was obtained from Wuchang Yinhe Rice Industry Co., Ltd., Wuchang, China. Fengmi Qu (FMQ), polygonum, bran, and rice husk were purchased from Fangxian, Shiyan City, Hubei Province, China. Glucoamylase for brewing and CICC41435 Rhizopus oryzae were obtained from China Industrial Microbial Strain Preservation and Management Center. Copper sulfate pentahydrate, potassium sodium tartrate, sodium hydroxide, glucose, methylene blue, hydrochloric acid, and methyl red (analytical reagents, ARs) were purchased from Sinopharm Chemical Reagent Co., Ltd., Beijing, China. 2-octanol was purchased from Beijing Bailingwei Technology Co., LTD, Beijing, China. Edible lactic acid was purchased from Henan Jindan Lactic Acid Technology Co., Ltd., Zhoukou, China.
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5

Purification and Analysis of Enzymes

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NaCl, yeast extract, Tryptone, agar, imidazole, d‐glucose, Nicotinamide adenine dinucleotide (NAD+), 3,5‐dinitrosalicylic acid (DNS), sodium hydroxide, potassium sodium tartrate, phenol, sodium sulfite, and sodium nitrate hexahydrate were provided by Sinopharm (Shanghai, China). Kanamycin, isopropyl‐β‐d‐thiogalactoside (IPTG), and dopamine hydrochloride were all purchased from Sigma (St. Louis, MO, USA). The Ni‐NTA resin was supplied by Nano‐Micro Co. Ltd (Suzhou, China). Unless otherwise stated, all chemicals and reagents were commercial analytical‐ or biological‐grade.
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