Effect of Different Co-emulsifiers and Solvents on Foaming for Emulsifier Glyceryl Monostearate

• Main Authors: WAN, YU-CHUN, 萬羽純
• Other Authors: LIN WEN-YUAN
• Format: Others
• Language: zh-TW
• Published: 2019
• Online Access: http://ndltd.ncl.edu.tw/handle/ws3sw6

碩士 === 實踐大學 === 食品營養與保健生技學系碩士班 === 107 === Monoglyceride (MG) has good effects for emulsification, dispersion, defoaming, and anti-retrogradation of starch. Among them, glyceryl monostearate (GMS) a nonionic surfactant, can be used as an emulsion and foam stabilizer, and is widely used in food and cosmetics products. In study 1, four co-emulsifiers were used to form a co-emulsifier gel with GMS. The four co-emulsifiers were, separately, polysorbate 60 (PS), sucrose fatty acid ester (SE), sorbitan monostearate (SM), and sodium stearoyl lactylate (SSL). The systems were used to observe the characteristics of the emulsified gel made with different co-emulsifiers. The simulated battering effect of the simulated batter was also tested, and the relationship between viscosity, hardness and crystal form and foaming property was analyzed. The results showed that GMS cooperated with four co-emulsifiers to initiate foaming ability. The foaming effect of SE and SM groups was better than that of SSL and PS group treatments. The SE treatment had better foaming ability at low levels. The SM group had better foaming properties with increasing concentrations. The crystal morphology of the gel system for GMS and the co-emulsifier was observed by an optical microscope. In the microscopic observation, there was no difference between the SE and SM emulsification with better foaming effect and the PS and SSL emulsified gels having poor foaming effect. The emulsified gels in storage were measured for several months in foaming effect. The four group treatment all showed a downward trend. In the second study, two solvents, propylene glycerol and glycerol, were prepared to make emulsified gels. The emulsifying properties and foaming properties of the emulsified gel were observed. The results showed that the propylene glycol group treatments had better foaming effect than the glycerol group treatments.