南京师范大学：《营养学》课程PPT教学课件（英文版）第八章 Vitamin

Professor Dr. Jin BQ Department of Food Science & Nutrition NJNU

Professor Dr. Jin BQ Department of Food Science & Nutrition NJNU

Introduction ▪ Small molecule organic compounds ▪ From Foods ▪ No composition in body ▪ No supplying energy ▪ Joining metabolism

Introduction ▪ Small molecule organic compounds ▪ From Foods ▪ No composition in body ▪ No supplying energy ▪ Joining metabolism

Name ▪ According to the finding history, A B C D- ▪ According to its physiological action, Soluble ▪ According to its chemical structure

Name ▪ According to the finding history, A B C D- ▪ According to its physiological action, Soluble ▪ According to its chemical structure

Classification ▪ Lipid-solution: A, D, E, K ▪ Liquid-solution: Bcom, C, choline

Classification ▪ Lipid-solution: A, D, E, K ▪ Liquid-solution: Bcom, C, choline

Vitamin Deficiency 1 Reasons Lower supply from food Lower absorption in gut Requirement increase in crowds Others 2 Deficiency Clinic or Original Marginal Secondary Cooperation Assisting Anti-assisting

Vitamin Deficiency 1 Reasons Lower supply from food Lower absorption in gut Requirement increase in crowds Others 2 Deficiency Clinic or Original Marginal Secondary Cooperation Assisting Anti-assisting

Typicality ▪ Coenzyme/cofactor/adjuvant ▪ Destroyed easily ▪ Lipid-vitamin is easy to store in body-toxin ▪ Liquid-vitamin is rich in foods, and easy to excreted

Typicality ▪ Coenzyme/cofactor/adjuvant ▪ Destroyed easily ▪ Lipid-vitamin is easy to store in body-toxin ▪ Liquid-vitamin is rich in foods, and easy to excreted

§Vit. A, Retinol

§Vit. A, Retinol

▪ Typicality ▪ Absorption & metabolism ▪ Function: 6 kinds 1 Vision: visual yellow, dark adaptation 2 Epithelial growing& cell developing 3 Improving immune 4 Anti-oxidation & anti-cancer ▪ Deficiency: Night blindness Epithelial hurting Delaying growth

▪ Typicality ▪ Absorption & metabolism ▪ Function: 6 kinds 1 Vision: visual yellow, dark adaptation 2 Epithelial growing& cell developing 3 Improving immune 4 Anti-oxidation & anti-cancer ▪ Deficiency: Night blindness Epithelial hurting Delaying growth

RNI & Food Source ▪ RE 800ug/700ug Ul/Vit.A 3000ug/d (2250 IU) ▪ In animal foods, such as liver, yolk, fish oil ▪ In vegetables, such as β-carotene Toxicity: half-life 128-154d/in body

RNI & Food Source ▪ RE 800ug/700ug Ul/Vit.A 3000ug/d (2250 IU) ▪ In animal foods, such as liver, yolk, fish oil ▪ In vegetables, such as β-carotene Toxicity: half-life 128-154d/in body

§Vit. D, Cholecaliferol 1,25-(OH)2 Vit D D3 cholecalciferol D2 ergocalciferol

§Vit. D, Cholecaliferol 1,25-(OH)2 Vit D D3 cholecalciferol D2 ergocalciferol