Quality of Sesame in Controlled Atmosphere Storage with CO2
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摘要:
目的 探讨在包装袋内充入不同比例的CO2气体对芝麻储藏品质的影响,为研发绿色、经济的芝麻室温储藏方式提供科学依据。 方法 在铝箔袋内装入一定量的芝麻,采用气体混合设备与真空包装设备先抽真空,再分别充入不同比例的CO2与空气的混合气体,封口后置于室温条件下密闭储藏。按照国家标准规定的测定方法,每隔2个月测定芝麻的酸价、过氧化值、碘值、粗脂肪含量和粗蛋白质含量,研究在室温条件下不同比例的CO2气体对芝麻储藏品质的影响。 结果 在一年储藏期内,随着储藏时间增加,气调处理的芝麻样品酸价和过氧化值逐渐升高,其中酸价在储藏6个月后突增,达到0.7000 meq·kg−1以上,之后增加缓慢;过氧化值整体呈上升趋势,但上升缓慢;CO2气体比例大于50%时,芝麻的酸价和过氧化值增加率均低于CO2气体比例小于50%的样品。碘值呈略微下降趋势,但变化不显著。粗脂肪含量和粗蛋白含量均逐渐降低,CO2气体比例越高,尤其当CO2气体比例大于50%时,粗脂肪含量和粗蛋白含量下降越缓慢,充入纯CO2气体的气调组的粗脂肪含量和粗蛋白含量降幅最少,分别为0.91%和1.56%,显著低于对照组的3.05%和15.02%(P<0.05)。 结论 包装袋内的气体成分对芝麻的储藏品质影响较大。CO2气体比例大于50%时,随储藏时间延长芝麻酸价和过氧化值增加量延缓,粗脂肪和粗蛋白质含量降低也明显延缓,从而达到延缓其氧化酸败进程的效果;在室温条件下采用纯CO2气体密闭储藏方式,一年内基本能保持芝麻的原有品质。 Abstract:Objective Effect of different concentration of CO2 in confined environment on quality of sesame was studied for a green and economic storage technology of the food material. Method Sesame were packed in aluminum foil bags under vacuum and fill with CO2 gas and air in various proportion using a gas mixing device. The changes on 5 indicators, i.e., acid, peroxide, and iodine values, and crude fat and protein contents, of the stored sesame were determined every 2 months according to the national standard method. Result In storage, the acid and peroxide values of the bagged sesame increased gradually with increasing time. After 6 months, the acid value drastically increased reaching up to 0.700 0 meq·kg−1. Then, the increased slowed down till the end. The upward trend on peroxide value was less dramatic. When a bag was filled with more than 50% of CO2, the rises on acid and peroxide became slower than when less CO2 gas was used; the iodine value decreased slightly but not significantly; and, the crude fat and protein contents decreased gradually. And, the higher CO2 proportion in the package, the slower the decrease became. When a bag was filled 100% with CO2, the decline on fat reduced by 0.42% and that on protein by 0.28%. Comparing to control, which had 3.05% decrease on fat and 15.02% on protein, the effects were statistically significant (P <0.05). Conclusion Oxygen in package significantly affected the quality of the stored sesame. By including more than 50% of CO2 gas in a bag, the increases on acid and peroxide values were significantly reduced, and the reduction of fat and protein delayed, and the onset of rancidity of the sesame postponed. In other words, the original quality of the sesame could basically be maintained at a premium level for a year at room temperature by the controlled atmosphere storage with CO2. -
Key words:
- sesame /
- storage /
- carbon dioxide /
- controlled atmosphere storage /
- quality
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表 1 不同CO2气体比例下芝麻酸价的变化
Table 1. Acid value of stored sesame in bags with different CO2 concentrations
处理
Treatment储藏时间 Storage time/月 0 2 4 6 8 10 12 CK 0.1950 e 0.2460±0.0089 d 0.2050±0.0046 e 0.7550±0.0096 c 0.7640±0.0053 c 0.7820±0.0036 b 0.8130±0.0026 a C/A 1∶9 0.1950 e 0.2350±0.0154 d 0.1940±0.0030 e 0.7140±0.0020 c 0.7430±0.0044 b 0.7510±0.0050 ab 0.7610±0.0040 a C/A 2∶8 0.1950 d 0.2620±0.0035 c 0.1990±0.0101 d 0.7520±0.0036 b 0.7640±0.0020 a 0.7690±0.0035 a 0.7720±0.0040 a C/A 3∶7 0.1950 e 0.2130±0.0026 d 0.2000±0.0046 e 0.7320±0.0079 c 0.7390±0.0044 bc 0.7450±0.0030 ab 0.7480±0.0056 a C/A 4∶6 0.1950 f 0.1940±0.0044 f 0.2170±0.0044 e 0.7190±0.0020 d 0.7260±0.0040 c 0.7330±0.0030 b 0.7410±0.0026 a C/A 5∶5 0.1950 e 0.2050±0.0053 d 0.1970±0.0026 e 0.7200±0.0066 c 0.7280±0.0030 b 0.7360±0.0020 a 0.7380±0.0072 a C/A 6∶4 0.1950 e 0.1930±0.0036 e 0.2210±0.0036 d 0.7220±0.0020 c 0.7250±0.0030 bc 0.7303±0.0075 ab 0.7350±0.0030 a C/A 7∶3 0.1950 b 0.2003±0.0075 b 0.2013±0.0170 b 0.7247±0.0025 a 0.7283±0.0059 a 0.7293±0.0031 a 0.7313±0.0035 a C/A 8∶2 0.1950 d 0.1940±0.0020 d 0.2400±0.0053 c 0.7203±0.0021 b 0.7240±0.0020 ab 0.7233±0.0012 ab 0.7271±0.0011 a C/A 9∶1 0.1950 d 0.2380±0.0020 c 0.2400±0.0053 c 0.7177±0.0015 b 0.7242±0.0003 a 0.7193±0.0015 b 0.7244±0.0026 a C/A 10∶0 0.1950 f 0.2150±0.0036 e 0.2420±0.0020 d 0.7147±0.0006 bc 0.7127±0.0021 c 0.7187±0.0031 ab 0.7190±0.0026 a 注:(1)试验从2017年9月开始为期1年,分别于储藏 0、2、4、6、8、10 和 12个月时各取样1次;(2)同一行数据后无相同字母者表示差异达显著水平(P<0.05)。(表2、3同)
Note: (1) Experiment lasted from in September 2017 to September 2018. Samples collected at 0, 2, 4, 6, 8, 10 and 12 months of storage time; (2) Data with different letters on same row indicate significant difference at P <0.05. Same for Tables 2 and 3.表 2 不同CO2气体比例下芝麻过氧化值的变化
Table 2. Changes on peroxide value of sesame stored in bags with different CO2 concentrations
处理
Treatment储藏时间 Storage time/month/月 0 2 4 6 8 10 12 CK 1.6940 g 1.8950±0.0030 f 2.0660±0.0087 e 2.1190±0.0061 d 2.4130±0.0036 c 2.5660±0.0020 b 2.6120±0.0020 a C/A 1∶9 1.6940 g 1.7547±0.0083 f 1.8137±0.0080 e 1.8817±0.0321 d 1.9667±0.0462 c 2.0700±0.0400 b 2.2133±0.0306 a C/A 2∶8 1.6940 d 1.8710±0.0046 c 1.8340±0.0040 c 1.8543±0.0257 c 1.8843±0.0254 c 1.9527±0.0352 b 2.1733±0.0503 a C/A 3∶7 1.6940 f 1.7900±0.0200 e 1.8127±0.0457 de 1.8390±0.0035 cd 1.8590±0.0020 c 1.9243±0.0123 b 2.0340±0.0026 a C/A 4∶6 1.6940 f 1.7710±0.0017 d 1.7500±0.0072 e 1.7790±0.0056 d 1.8490±0.0030 c 1.9110±0.0085 b 2.0360±0.0040 a C/A 5∶5 1.6940 f 1.7540±0.0070 e 1.7453±0.0031 e 1.7763±.0.0045 d 1.8417±0.0040 c 1.8950±0.0139 b 2.0110±0.0105 a C/A 6∶4 1.6940 f 1.7327±0.0050 e 1.7357±0.0029 e 1.7657±0.0106 d 1.8100±0.0115 c 1.8707±0.0081 b 2.000±0.0122 a C/A 7∶3 1.6940 f 1.7287±0.0012 e 1.7330±0.0131 e 1.7507±0.0023 d 1.7920±0.0060 c 1.8680±0.0060 b 1.9823±0.0057 a C/A 8∶2 1.6940 g 1.7187±0.0042 f 1.7293±0.0029 e 1.7410±0.0062 d 1.7673±0.0047 c 1.8327±0.0047 b 1.9693±0.0061 a C/A 9∶1 1.6940 e 1.7060±0.0072 e 1.7137±0.0045 de 1.7317±0.0040 cd 1.7430±0.0066 c 1.8100±0.0053 b 1.9010±0.0292 a C/A 10∶0 1.6940 e 1.6997±0.0015 de 1.7087±0.0025 d 1.7263±0.0025 c 1.7310±0.0075 c 1.7773±0.0150 b 1.8577±0.0091 a 表 3 不同二氧化碳气体比例下芝麻碘值的变化
Table 3. Changes on iodine value of sesame stored in bags with different CO2 concentrations
处理
Treatment储藏时间 Storage time/month/月 0 2 4 6 8 10 12 CK 108.7780 b 108.3743±0.4531 b 112.7493±0.3786 a 106.9493±0.1896 c 106.1783±0.3191 d 104.6603±0.5325 e 103.9197±0.2236 f C/A 1∶9 108.7780 bc 108.1840±0.6308 c 109.0770±0.3190 b 112.1437±0.3958 a 107.1303±0.3826 d 106.5577±0.4164 d 105.2470±0.5978 e C/A 2∶8 108.7780 b 107.1723±0.6629 c 112.2160±0..4740 a 106.3010±0.4928 cde 106.5017±0.4679 cd 105.7113±0.4923 de 105.4337±0.6317 e C/A 3∶7 108.7780 a 108.3513±0.5237 a 108.9987±0.5150 a 109.0987±0.5467 a 108.7807±0.4690 a 107.4287±0.5372 b 106.9143±0.3695 b C/A 4∶6 108.7780 b 108.3253±0.4599 bc 109.0080±0.5196 b 111.6440±0.4681 a 108.1363±0.4769 bc 107.6173±0.5334 c 106.2087±0.5460 d C/A 5∶5 108.7780 b 106.2923±0.5033 d 111.8679±0.4965 a 108.3550±0.4585 bc 107.5627±0.5278 c 107.7853±0.5362 c 106.6860±0.4746 d C/A 6∶4 108.7780 a 108.4953±0.4514 a 107.3623±0.5267 b 109.0763±0.3031 a 107.3193±0.3944 b 106.8167±0.5110 b 107.2157±0.4434 b C/A 7∶3 108.7780 a 108.4630±0.4215 ab 109.001±0.5072 a 106.0633±0.6812 e 107.7410±0.4361 bc 107.1317±0.5822 cd 106.8053±0.3789 de C/A 8∶2 108.7780 a 108.3220±0.4990 a 107.2187±0.4985 b 108.7900±0.4473 a 108.5580±0.4642 a 107.3187±0.3989 b 106.7927±0.4518 b C/A 9∶1 108.7780 a 108.4070±0.4556 ab 107.7680±0.5295 bc 107.5937±0.5332 bc 106.9473±0.5739 c 107.1570±0.4801 c 106.9113±0.2785 c C/A 10∶0 108.7780 b 108.2593±0.5281 bc 112.1357±0.9232 a 107.8580±0.6827 bcd 107.2877±0.5418 cde 106.9537±0.5221 de 106.5707±0.5422 e -
[1] 胡晋. 种子贮藏加工[M]. 北京: 中国农业大学出版社, 2001: 270–275. [2] 郑理芳. 在中央直属粮库应用充氮气调储粮新技术的探讨 [J]. 粮油仓储科技通讯, 2009, 25(1):53−56.ZHENG L F. Nitrogen gas is filled in the grain depot directly under the central government used adjustable new technology of grain storage was discussed [J]. Liangyou Cangchu Keji Tongxun, 2009, 25(1): 53−56.(in Chinese) [3] HASSAN A B, MAHMOUD N S, ELMAMOUN K, et al. Effects of Gamma irradiation on the protein characteristics and functional properties of sesame (Sesamum indicum L.) seeds [J]. Radiation Physics and Chemistry, 2018, 144: 85−91. [4] ZHANG Y X, SUN J, ZHANG X R, et al. Analysis on genetic diversity and genetic basis of the main sesame cultivars released in China [J]. Agricultural Sciences in China, 2011, 10(4): 509−518. [5] 林达豪. 芝麻病害绿色防控技术 [J]. 乡村科技, 2019(26):84−85. doi: 10.3969/j.issn.1674-7909.2019.26.047 [6] MEHMOOD S, SAEED D A, RIZWAN M, et al. Impact of different amendments on biochemical responses of sesame (Sesamum indicum L.) plants grown in lead-cadmium contaminated soil [J]. Plant Physiology and Biochemistry, 2018, 132: 345−355. [7] JI J M, LIU Y L, SHI L K, et al. Effect of roasting treatment on the chemical composition of sesame oil [J]. Lwt-Food Science and Technology, 2019, 101: 191−200. [8] LEE E, CHOE E. Changes in oxidation-derived off-flavor compounds of roasted sesame oil during accelerated storage in the dark [J]. Biocatalysis and Agricultural Biotechnology, 2012, 1(1): 89−93. [9] 朱庆贺, 张来林, 王书礼, 等. 气调储藏对芝麻生理品质影响的研究 [J]. 河南工业大学学报(自然科学版), 2015, 36(1):67−71, 84.ZHU Q H, ZHANG L L, WANG S L, et al. Effects of controlled atmosphere storage on physiological quality of sesame [J]. Journal of Henan University of Technology (Natural Science Edition), 2015, 36(1): 67−71, 84.(in Chinese) [10] 孙强, 曹世娜, 朱笑鹏, 等. 气调密闭贮藏对芝麻品质的影响 [J]. 中国农业科技导报, 2019, 21(6):87−93.SUN Q, CAO S N, ZHU X P, et al. Effect of gas seal storage on sesame quality [J]. Journal of Agricultural Science and Technology, 2019, 21(6): 87−93.(in Chinese) [11] 马梦苹, 张来林. 芝麻在储藏过程中的生物化学变化 [J]. 现代食品, 2016(2):38−40. doi: 10.3969/j.issn.1007-3582.2016.02.012MA M P, ZHANG L L. Biochemical changes of sesame in storage [J]. Modern Food, 2016(2): 38−40.(in Chinese) doi: 10.3969/j.issn.1007-3582.2016.02.012 [12] 蒋春燕. CO2气调储藏对稻谷品质的影响[D]. 长沙: 中南林业科技大学, 2015.JIANG C Y. The research on effect of CO2 controlled atmosphere storage on paddy quality[D]. Changsha: Central South University of Forestry and Technology, 2015. (in Chinese). [13] 祝水兰, 刘光宪, 周巾英, 等. 包装方式对花生仁气体密闭贮藏过程中脂肪的影响 [J]. 食品与机械, 2015, 31(2):174−177.ZHU S L, LIU G X, ZHOU J Y, et al. Effects of different packing materials on quality of peanut fats by different gas sealed storage [J]. Food & Machinery, 2015, 31(2): 174−177.(in Chinese) [14] 周巾英, 朱雪晶, 冯健雄, 等. 气调包装对原料油菜籽酸价和过氧化值的影响 [J]. 食品与发酵工业, 2016, 42(11):167−170.ZHOU J Y, ZHU X J, FENG J X, et al. Effect of controlled atmosphere packaging on acid value and peroxide value of rapeseed at room temperature [J]. Food and Fermentation Industries, 2016, 42(11): 167−170.(in Chinese) [15] 幸胜平, 付晓记, 付江凡, 等. 不同包装材料和密闭储藏处理对油菜籽品质的影响 [J]. 食品与发酵工业, 2019, 45(13):166−170.XING S P, FU X J, FU J F, et al. Effects of different packaging materials and airtight storage on storage quality of rapeseeds [J]. Food and Fermentation Industries, 2019, 45(13): 166−170.(in Chinese) [16] 中华人民共和国国家卫生和计划生育委员会. 食品安全国家标准 食品中酸价的测定: GB 5009.229–2016[S]. 北京: 中国标准出版社, 2017. [17] 中华人民共和国国家卫生和计划生育委员会. 食品安全国家标准 食品中过氧化值的测定: GB 5009.227–2016[S]. 北京: 中国标准出版社, 2017. [18] 中华人民共和国国家卫生和计划生育委员会, 中华人民共和国国家食品药品监督管理总局. 食品安全国家标准 食品中脂肪的测定: GB 5009.6—2016[S]. 北京: 中国标准出版社, 2017. [19] 中华人民共和国国家卫生和计划生育委员会, 中华人民共和国国家食品药品监督管理总局. 食品安全国家标准 食品中蛋白质的测定: GB 5009.5—2016[S]. 北京: 中国标准出版社, 2017. [20] 中华人民共和国国家质量监督检验检疫总局, 中华人民共和国国家标准化管理委员会. 动植物油脂 碘值的测定: GB/T 5532—2008[S]. 北京: 中国标准出版社, 2009. [21] 张来林, 郑亿青, 顾祥明, 等. 不同储藏条件对油葵籽储藏品质的影响研究 [J]. 河南工业大学学报(自然科学版), 2013, 34(5):29−34.ZHANG L L, ZHENG Y Q, GU X M, et al. Influences of storage conditions on storage quality of oil sunflower seeds [J]. Journal of Henan University of Technology (Natural Science Edition), 2013, 34(5): 29−34.(in Chinese) [22] 姚云游, 姚玮. 影响葵花籽(仁)品质变化的因素及控制方法 [J]. 中国油脂, 2014, 39(9):85−87.YAO Y Y, YAO W. Factors affected sunflower seeds (kernel) quality and control methods [J]. China Oils and Fats, 2014, 39(9): 85−87.(in Chinese) [23] 万忠民, 李红, 许进田, 等. 低温和气调储藏对油菜籽品质的影响 [J]. 中国粮油学报, 2012, 27(8):79−84. doi: 10.3969/j.issn.1003-0174.2012.08.018WAN Z M, LI H, XU J T, et al. The influence of low temperature and controlled atmosphere storage on quality of rapeseed [J]. Journal of the Chinese Cereals and Oils Association, 2012, 27(8): 79−84.(in Chinese) doi: 10.3969/j.issn.1003-0174.2012.08.018 [24] 张来林, 朱庆贺, 周杰生, 等. 不同储藏条件对芝麻制油品质的影响研究 [J]. 河南工业大学学报(自然科学版), 2015, 36(2):47−51, 57.ZHANG L L, ZHU Q H, ZHOU J S, et al. Effects of storage conditions on oil-making quality of sesame seeds [J]. Journal of Henan University of Technology (Natural Science Edition), 2015, 36(2): 47−51, 57.(in Chinese)