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第十章 采收与商品化处理 PowerPoint PPT Presentation


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采收与采后处理的意义: 生产区域性强、季节性强,极易受环境条件的影响; 属鲜活产品,营养丰富,含水量高,易腐烂变质; 种类繁多,大小、形状变化较大,成熟习性也不一样; 既能直接用于消费,也可以作为加工材料进行利用。. 第十章 采收与商品化处理. 因此,根据需要进行适时采收,同时为满足不同地区及周年供应的要求,合理贮藏和运输显得尤其重要。 采收是园艺作物栽培的结束,是采后工作的开始,对园产品的品质、寿命和用途影响较大。. ( 一 ) 表面色泽

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第十章 采收与商品化处理

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()





()


17 kg/cm2

16 kg/cm2

13.6 kg/cm2


()


()

145d150d160d

4206



()


()

101

81301


()


()



()



1.

2.

3.



10













85~90


24h



1~3

2~3


()



66%51%43%

1970807~13min60%~85%


19701975197875


1

2

3


()

cycloheximide


5~7d200~300mgL800~1000mgL

3~7d1%~3%



19981229


1


2


6





ISO(International Standard Organization)

GBSBGB l0650-89GB10650891989



GB 18406.12001

GB/T 18407.12001

NY 50012001

NY/T 50012001

DB/T 20652003


()

20




2080

(ECE)(SAF)ECE


1.

113(GB)



2000

1997125

20





2ECE

(ECE)


ECE*


3(SAF)

ECEECE




4


2.





3.

24




1


2

3






10


(OECD)1970





1.


1

2


3

4


2.


1 3


2


3


3050




1.


2.

3



1200cm65cm20cm2cm

81167500kg


2

1.1~1.5th

197232t


3.



1.

1

2

3

4


2.


1

2


3


4


5


6


3.

1


2




3





4.


5.

O2CO2

105~20









1 1 500~3000kg/h

2


2

3


4

5


1.



2.

1 20

2060


2 ()(50l00mgL)


3 120


4

26445d26271~21d152d93d4~6


5



3.


()


1.

50


2.


1.



1


2070


2


2

ISO 7558-1988


1

2


3

4

5

4

15kg


6

45

2kg

7

423kg


8




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