Effects of Blanching Followed by Spray Drying on Volatile Flavor Compounds in Sweet Corn

被引：0

作者：

Zhuang Z. ^{[1
,2
]}

Zhang Y. ^{[1
]}

Deng Y. ^{[1
]}

Tang X. ^{[1
]}

Liu G. ^{[1
]}

Li P. ^{[1
]}

Li Y. ^{[2
]}

机构：

[1] Key Laboratory of Functional Foods, Ministry of Agriculture and Rural Affairs, Guangdong Key Laboratory of Agricultural Products Processing, Sericultural & Agri-food Research Institute, Guangdong Academy of Agricultural Sciences, Guangdong

[2] College of Food Science, South China Agricultural University, Guangdong

来源：

Shipin Kexue/Food Science | 2023年 / 44卷 / 14期

关键词：

blanching; gas chromatography-mass spectrometry; gas chromatography-olfactometry; spray drying; sweet corn; volatile flavor compounds;

D O I：

10.7506/spkx1002-6630-20220819-232

中图分类号：

学科分类号：

摘要：

The effects of blanching followed by spray drying on volatile flavor compounds in sweet corn were investigated. The volatile flavor compounds in fresh, blanched and spray-dried sweet corn were analyzed by headspace solid phase microextraction coupled with gas chromatography-mass spectrometry (HS-SPME-GC-MS). The qualitative analysis was carried out by comparison of the spectra for the chromatogram peaks with those in the NIST14 database library and comparison of retention index (RI), and the quantitative analysis by an internal standard method. Gas chromatography-olfactometry (GC-O) was used to analyze the composition of odor-active compounds and overall flavor profiles. The results showed that a total of 58 volatile flavor compounds were detected in fresh, blanched and spray-dried samples. Blanching and spray drying had significant effects on the types and contents of volatile flavor compounds in sweet corn. After blanching treatment, the contents of ketones, aromatic compounds, terpenes and aldehydes were decreased, and the total content of volatile flavor compounds decreased by 36.60%. After spray drying, the total content of volatile flavor compounds was increased by 19.21 and 30.30 times compared with those of fresh and blanched sweet corn, respectively. Among them, the contents of aldehydes, ketones, alcohols and heterocyclic compounds were increased, and new substances such as dimethyl thioether and 2-acetyl-1-pyrroline were detected. Principal component analysis (PCA) showed that the decreases in the contents of 2-nonenal (E), 3-ethyl-2-methyl-1, 3-hexadiene, octanal and D-limonene were closely related to blanching, while the increases in the contents of dimethyl thioether, 2-acetyl-1-pyrroline, 2-methylpropanal, 3-methylbutanal, 2-methylbutanal 2-methyl-(E)-2-butenal compounds were highly correlated with spray drying. Thirty-three odor-active compounds were detected by GC-O, 10 of which had odor intensity value (OIV) equal to or larger than 3. Flavor profile analysis showed that the intensity of fruity aroma was the highest in fresh sweet corn, followed by floral, nutty and green aroma. After blanching treatment, the overall aroma intensity was decreased and in particular, the grassy aroma intensity was decreased significantly. After spray drying, the overall aroma intensity was significantly increased, the intensity of nutty and green aroma was significantly enhanced, and a strong barbecue aroma appeared. © 2023 Chinese Chamber of Commerce. All rights reserved.

引用

页码：274 / 282

页数：8

共 17 条

[1] WANN E V., Leaching of metabolites during imbibition of sweet corn seed of different endosperm genotypes 1, Crop Science, 26, 4, pp. 731-733, (1986)
[2] YAO L M, ZHANG Y, QIAO Y J, Et al., A comparative evaluation of nutritional characteristics, physical properties, and volatile profiles of sweet corn subjected to different drying methods, Cereal Chemistry, 99, 2, pp. 405-420, (2022)
[3] FARAG M A, AMMAR N M, EL GENDY A N, Et al., Effect of grilling as processing method on Zea mays (corn) metabolites composition as analyzed via SPME GC-MS and chemometrics, Journal of Food Processing and Preservation, 43, 11, (2019)
[4] (2016)
[5] ZHOU Q, LI G J, OU-YANG Z, Et al., Volatile organic compounds profiles to determine authenticity of sweet orange juice using head space gas chromatography coupled with multivariate analysis, Foods, 9, 4, (2020)
[6] CHEONG M W, LIU S Q, ZHOU W, Et al., Chemical composition and sensory profile of pomelo (Citrus grandis (L.) Osbeck) juice, Food Chemistry, 135, 4, pp. 2505-2513, (2012)
[7] ROUTRAY W, RAYAGURU K., 2-Acetyl-1-pyrroline: a key aroma component of aromatic rice and other food products, Food Reviews International, 34, 6, pp. 539-565, (2018)
[8] WEI X, HANDOKO D D, PATHER L, Et al., Evaluation of 2-acetyl-1-pyrroline in foods, with an emphasis on rice flavour, Food Chemistry, 232, pp. 531-544, (2017)
[9] (2020)
[10] ARSA S, THEERAKULKAIT C, CADWALLADER K R., Quantitation of three strecker aldehydes from enzymatic hydrolyzed rice bran protein concentrates as prepared by various conditions, Journal of Agricultural and Food Chemistry, 67, 29, pp. 8205-8211, (2019)

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