6 3、Introduction (3) That is why there is a need for 这就是 为什么对以下两点有需要的原因 • Food preservation food industry 食品的保藏 食品工业生产 • Food transportation food retail 食品的运输 食品的零售
6 3、Introduction (3) That is why there is a need for 这就是 为什么对以下两点有需要的原因 • Food preservation food industry 食品的保藏 食品工业生产 • Food transportation food retail 食品的运输 食品的零售
7 Historically, objectives of food technologies have been : 自古以来，食品加工技术的目的在于： preservation of food 食品获得良好的保藏性 rendering food more palatable and digestible 食品更加美味可口和容易消化吸收 4、Introduction (4)
7 Historically, objectives of food technologies have been : 自古以来，食品加工技术的目的在于： preservation of food 食品获得良好的保藏性 rendering food more palatable and digestible 食品更加美味可口和容易消化吸收 4、Introduction (4)
8 In modern times, food technologies are applied with the additional objectives : 在当代，食品加工技术还运用于以下几方面： developing new food products 开发新食品 giving food desired functional properties 赋予食品更多的功效 improving nutritional and organoleptic quality 提高食品的营养价值和口感 ensuring safety 保证食品的安全性 5、Introduction (5)
8 In modern times, food technologies are applied with the additional objectives : 在当代，食品加工技术还运用于以下几方面： developing new food products 开发新食品 giving food desired functional properties 赋予食品更多的功效 improving nutritional and organoleptic quality 提高食品的营养价值和口感 ensuring safety 保证食品的安全性 5、Introduction (5)
9 6、Introduction (6) Microorganisms in food are 食品中的微生物 • helpful: for fermentation 有益之处：发酵 • competitive: cause spoilage 竞争性：导致食品腐败 • hazardous: cause foodborne disease 危害性：导致食源性疾病
9 6、Introduction (6) Microorganisms in food are 食品中的微生物 • helpful: for fermentation 有益之处：发酵 • competitive: cause spoilage 竞争性：导致食品腐败 • hazardous: cause foodborne disease 危害性：导致食源性疾病
10 To understand : 需要了解： how different food technologies can be used to prevent spoilage and/or control hazards in foods 防止食品腐败和（或）控制潜在危害的食品加工技术不同 the factors (parameters) which influence the process and thus the safety of the final products 影响加工过程以及终产品安全的各种因素（参数） how to monitor these factors 如何监控这些因素 Objective 2、学习目标
10 To understand : 需要了解： how different food technologies can be used to prevent spoilage and/or control hazards in foods 防止食品腐败和（或）控制潜在危害的食品加工技术不同 the factors (parameters) which influence the process and thus the safety of the final products 影响加工过程以及终产品安全的各种因素（参数） how to monitor these factors 如何监控这些因素 Objective 2、学习目标