A.基本原理
食品储存期加速测试的原理就是利用化学动力学来量化外来因素如温度、湿度、气压和光照等对变质反应的影响力。通过控制食品处于-个或多个外在因素高于正常水平的环境中,变质的速度将加快或加速,在短于正常时间内就可判定产品是否变质。因为影响变质的外在因素是可以量化的,而加速的程度也可以计算得到,因此可以推算到产品在正常储存条件下实际的储存期。
由于许多包装食品通常可以储存超过-年,评价对储存期产生影响的外在因素,如产品本身配
料的改变(采用新的抗氧化剂或增稠剂) ,加工过程的改变(采用不同消毒时间或温度),或
包装材料的改变(采用新的聚合体薄膜),都会希望储存期尽可能持续到产品所要求的时间
(商业储存期)。但许多公司都等不起这么长的时间来知道这些新产品/新加工过程/新包装材
料能否提供足够的储存期,因为会影响到其他决定(如新工厂的合同,采购新设备,或者安排供应新包装材料等都有时间限制)。因此需要有一些方法来加快产品储存期的测试,食品储存期加速测试(ASLT) 因此产生了。制药工业早就广泛应用类似的方法来进行储存期及药效测试。在给定的条件下,产品质量的衰退与时间成反比例。温差为10℃的两个任意温度下的储存期的比率Q10=温度为T时的储存期/温度为(T 10℃)时的储存期,对储存期有极大的影响:
Q10对储存期的影响
储存期(周数) .
温度℃ Q10=2 Q10=2.5 Q10=3 Q10=5
50 2*2*2*2*
40 4 5 6 10
30 8 12.5 18 50
20 16 31.3 54.4.8 年
*假设50℃时的储存期为2周。
通常来说,罐头食品的Q10为1.1~4,脱水产品为1.5~10;冷冻产品为3~40。
若为新产品则要进行多次试验确定Q10。
B.食榀储存期加速测试(ASLT) 步骤
可采用以下步骤来设定食物产品的储存期:
a.测定产品的微生物安全及质量指标;即理化测试。
b.选择关键的变质反应,哪些会引致产品品质衰退,而这些品质衰退是消费者所不能够接受
的,并决定哪些测试必须在产品试验过程中进行(感官上或仪器上的) ;
C.选择使用的包装材料:测试一系列的包装材料,这样可以选择出一个最为划算的材料(即
经济又满足一定的储存期)。
选择哪些将作用于加速反应的外在因素,见下表所建议温度,必须选择最少2个。
![](data:image/png;base64,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)
d.使用坐标曲线,记录在测试温度下,产品的储存有多久。如果未知Q10值,则必须进行全
面的ASLT测试。保质期试验箱配备专用分析图表。
a.确定测试的次数
f2=f1 Q10/10
f1:在较高测试温度T1下的测试时间(天,周)
f2:在较低测试温度T2下的测试时间(天,周)
: T1与T2的温度差
因为如果一个产品在40℃测试一个月, 则30℃,Q10=3,产品需最少测试
f2=1x3(10/10)=3个月。
如Q10未知,最好进行多次测试,最少需要有6个资料点来将误差最小化,否则得到的储存期
可信度就会贬低。
b.计算各个测试条件下,储存的样品的数量。
C.开始ASLT,把得到的资料画在坐标图上,可根据需要增加或减少取样的次数。
d.从各个测试储存条件,评估K值或储存期并适当建立储存期图形,据此估算出正常条件下的
储存期。
C.实际应用例子
以产品脱水汤料为例,选择两个储存条件: 30℃/75%相对湿度和37℃/75%相对湿度。
-感官测试方法按照国际标准方法ISO3972。
-恒温恒湿装置: 可采用BH-188型保质期试验箱,调整到所需的温湿度;或将玻璃干燥皿内
干燥剂取出,放入氯化钠饱和溶液,再将它放到温度分别为30℃和37℃和保质期试验箱内。
-无色、无味的饮用水。
-电炉或煤气炉。
-要求测试者回答的问卷。
-独立、隔音的测试区域,白色荧光灯。
-标准样(汤料产品,调料产品...
-盘子、玻璃杯、汤匙。
将样品放入保质期试验箱内,每隔1.5~3个月评价一次(时间间隔根据产品的种类和储存条件不同而定),并与标准样相比较。
评价结果按以下评分:
5,-产品的所有特征与标准样完全-致
4,5产品可以接受,但与标准样相比较则有轻微差别
4,-产品可以接受,但与标准样相比较则有些差别
3,5产品可以接受,但与标准样相比较则有明显差别
3,-产品既不能接受,也不能说不能接受
2,5产品稍微有点不能接受
2,-产品有点不能接受
1,5产品很明显地不能接受
1,-产品完全不能接受
将得到的结果进行平均。
分数3是可以接受的临界点,如果达到了这个分数就说明产品已到了储存期限了。
作为一个通用的标准,如果脱水产品(汤料, 调料)分别在保持37℃/75%相对湿度和
30℃/75%相对湿度的条件下储存3和12个月,仍可得到不低于3的分数,则此产品可被认为是合格的。
根据原理,脱水汤料产品可以根据以下ASLT资料所组成的坐标图来估算出标准储存条件下的储存期:
![](data:image/png;base64,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)
D.稳定性测试.
同样,还可以利用这个方法对产品进行稳定性测试,以确保产品的商业储存期,
所用方法和仪器与以上相同,只是画的坐标图不同而已。用鸡粉为例,作出详细的检验,评
估,分析,结论是此产品的商业储存期设为24个月是可以保证的。