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第二篇 食品卫生学 PowerPoint PPT Presentation


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第二篇 食品卫生学. 预防医学系. 食品卫生学是研究食品中可能存在、威胁人类健康的 有害因素 及其有关问题的科学。 有害因素 ---- 研究 种类来源 、 性质作用 、 含量水平、 监督检测 和 预防管理 等。 种类来源 --- 食品污染物、食品添加剂使用不当、食品自身产生的有害物质。 性质作用 --- 食品腐败变质、霉变、食物中毒、肠道传染病、添加剂使用不当等导致的慢性危害及“三致”。. F.H.Main Contents. 食品污染及其预防 see it 食品添加剂 see it 食品的卫生及其管理 see it 食物中毒及其预防 see it

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第二篇 食品卫生学

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----

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F.H.Main Contents

  • see it

  • see it

  • see it

  • see it

  • see it


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  • 1

  • 2

  • 3


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  • 1

  • 2

  • 3


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-------pH

: 0

15~45 37

45~75


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1

  • 1 G-

  • pH 5.0 - 5.2

  • 2 G+

  • 3

  • 4

  • 5

  • 6 G-

  • 7 G+


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2

  • 1

  • .

  • a

  • b


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2

35~37 G-100g 100ml maximum probable numberMPN


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  • 1 2 3 4


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:


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  • ---

  • ---()

  • ()()


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(3)


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  • ()

  • 45000

  • 1


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(


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1

20BG6-1AFB1AFG1AFMlAFBl AFBl


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Rf280


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2

;

(8090)

(2530 )(1)


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3


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4


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(1)

10AFB1 LD500.24mgkgbwDNARNA l mgLDNARNA


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(2)


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(3)

1)75

2) AF(PHC)


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5

AFB1

( 6~2)


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AFB1

(CST)

DNARNA


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6

  • (1)

  • a)

  • b)

  • c)

  • d)


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(2)


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(3)

B1

()

20ugkg

10 ug/kg

5ugkg

AFMlAFM10.5ug/kg


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  • ---.


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()

  • (1)

  • 0-2~1548


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  • -12-23

  • -18

  • :C02


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(2)

1)

>>

pH


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2)

10-7 -10


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(3)

30 -20

: -2 -5


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1)


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:


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2)

()


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(4)

cold chain

(time)(temperature(tolerance)TTT


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(1)


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()

1

(1iposome)


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D

90% D

F

Z


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2

1) see it

2) see it

3) see it

4) see it

5) see it


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1

110~12120


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(2)()

62.8 30pH4

71.715

()


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(3) 137.8 2


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(4) :

1005 100 10


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(5)(microwave heating)

7215

(1000Um


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3

(1)

100

,

100 ~150

150

190


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(2) 160 ~180 250


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(3)

(aging)


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()

  • 1

  • 701~3


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  • 2

  • ()

  • ()


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()


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1

.

,


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2

15 ~ 2015

5060


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3


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()

  • 60 Co137Cs10(Mev)


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  • 1

  • 2

  • 3

  • 4


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1 --

--

2 --

3 --

4 --

--


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N-

  • 90%

  • N- N-

  • N-


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1

2

3


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4

5

pH 1~4 pH< 3


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()N-

  • 1

  • ---

  • ---

  • 2

  • 3

  • 4


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  • 1

  • 2

  • 3

  • 4

  • 5C

  • C

  • 6


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  • polycyclic aromatic hydrocarbonsPAH)

  • (heterocyclic amines)

  • (a)


A benzo a pyrene b a p

()(a)[benzo(a)pyreneB(a)P]

  • 1

  • 5NONO2


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2

AmesDNA

B(a)P


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3

B(a)P

B(a)P B(a)P

B(a)PDNARNAB(a)P


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4

B(a)P 4.795.5 ug/kg


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5(a)

(1)


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(2)(a)

(3)

B(a)P5ugkg(GB 7104-86)B(a)P10ugkg(GB 2716-88)


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