Haibei flavor Co., Ltd., located in Hefei, is one of the earliest manufacturers of mustard products in China. Its main products are Tea tree oil Tea tree essential oil Tea tree extract supplier, etc. Haibei flavor Co., Ltd. is one of the earliest manufacturers in China to obtain the industrial production license for Na tural tea tree flavor. The purity of its products is more than 99%. It is the largest supplier of Tea tree oil and spicy products in China. Its annual production capacity is 500 tons, meeting the needs of customers at home and abroad. Its products are also widely used in medicine, chemical industry, mold prevention, corrosion prevention and other industries. Haibei flavor Co., Ltd. has introduced foreign advanced mustard essence production and purification process. It has a strong scale. It has a super technical R & D team, a perfect quality management system, a high-quality staff team, testing equipment, meteorological chromatograph, super constant temperature water bath pot, etc. to ensure the stability of product quality. Its products sell well in China, North America, Japan, South Korea, Taiwan and other places. It is praised by the majority of users as a "quality wins" manufacturer. Company tenet: quality for survival, reputation to win customers Operating counter shock; User first, quality first, service first and reputation first Company slogan: health is happiness and longevity is benefit

Haibei flavor Co., Ltd., located in Hefei, is one of the earliest manufacturers of mustard products in China. Its main products are mustard essence, allyl isothiolate, powdered mustard essence, natural mustard essence, mustard powder, etc. Haibei flavor Co., Ltd. is one of the earliest manufacturers in China to obtain the industrial production license for synthetic mustard flavor. The purity of its products is more than 99%. It is the largest supplier of mustard oil and green mustard and spicy products in China. Its annual production capacity is 500 tons, meeting the needs of customers at home and abroad. Its products are also widely used in medicine, chemical industry, mold prevention, corrosion prevention and other industries. Haibei flavor Co., Ltd. has introduced foreign advanced mustard essence production and purification process. It has a strong scale. It has a super technical R & D team, a perfect quality management system, a high-quality staff team, testing equipment, meteorological chromatograph, super constant temperature water bath pot, etc. to ensure the stability of product quality. Its products sell well in China, North America, Japan, South Korea, Taiwan and other places. It is praised by the majority of users as a "quality wins" manufacturer. Company tenet: quality for survival, reputation to win customers Operating counter shock; User first, quality first, service first and reputation first Company slogan: health is happiness and longevity is benefit

Haibei: the company's annual output of 5000 tons of menthol project is in operation Daily economic news On April 22, the investor interaction platform said that the company's annual output of 5000 tons of menthol project is under construction.

Typical gas chromatogram of food additive 4-hydroxy-2,5-dimethyl-3(2H)furanone A typical gas chromatogram of the food additive 4-hydroxy-2,5-dimethyl-3(2H)furanone is shown in Figure B.1. Figure B.1 Typical gas chromatogram of food additive 4-hydroxy-2,5-dimethyl-3(2H)furanone B.2 Operating Conditions B.2.1 Column: capillary column, 30m long, 0.53mm inner diameter. B.2.2 Stationary phase: polyethylene glycol . B.2.3 Film thickness: 1.0μm. B.2.4 Chromatographic oven temperature: constant temperature at 80 °C for 1 min, then linearly program the temperature from 80 °C to 220 °C at a rate of 10 °C/min, and finally at 220 °C for 10 minutes. B.2.5 Inlet temperature: 240℃. B.2.6 Detector temperature: 240℃. B2.7 Detector: Hydrogen flame ionization detector. B.2.8 Carrier gas: nitrogen. B.2.9 Pre-column pressure: 0.06～0.07MPa. B.2.10 Injection volume: about 0.2μL. B.2.11 Split ratio: 1/100.