Effect of Fermentation Parameters on Natto and Its Thrombolytic Property

Natto is a popular food because it contains a variety of active compounds, including nattokinase. Previously, we discovered that fermenting natto with the combination of <i>Bacillus subtilis</i> GUTU09 and <i>Bifidobacterium animalis subsp. lactis</i> BZ25 resulted in a drama...

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Autores principales: Yun Yang, Guangqun Lan, Xueyi Tian, Laping He, Cuiqin Li, Xuefeng Zeng, Xiao Wang
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Publicado: MDPI AG 2021
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Acceso en línea:https://doaj.org/article/77090cb5066c445281223e3fe8e0c8f3
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spelling oai:doaj.org-article:77090cb5066c445281223e3fe8e0c8f32021-11-25T17:32:29ZEffect of Fermentation Parameters on Natto and Its Thrombolytic Property10.3390/foods101125472304-8158https://doaj.org/article/77090cb5066c445281223e3fe8e0c8f32021-10-01T00:00:00Zhttps://www.mdpi.com/2304-8158/10/11/2547https://doaj.org/toc/2304-8158Natto is a popular food because it contains a variety of active compounds, including nattokinase. Previously, we discovered that fermenting natto with the combination of <i>Bacillus subtilis</i> GUTU09 and <i>Bifidobacterium animalis subsp. lactis</i> BZ25 resulted in a dramatically better sensory and functional quality of natto. The current study further explored the effects of different fermentation parameters on the quality of natto fermented with <i>Bacillus subtilis</i> GUTU09 and <i>Bifidobacterium</i> BZ25, using Plackett–Burman design and response surface methodology. Fermentation temperature, time, and inoculation amount significantly affected the sensory and functional qualities of natto fermented with mixed bacteria. The optimal conditions were obtained as follows: soybean 50 g/250 mL, triangle container, 1% sucrose, <i>Bacillus subtilis</i> GUTU09 to <i>Bifidobacterium</i> BZ25 ratio of 1:1, inoculation 7%, fermentation temperature 35.5 °C, and fermentation time 24 h. Under these conditions, nattokinase activity, free amino nitrogen content, and sensory score were increased compared to those before optimization. They were 144.83 ± 2.66 FU/g, 7.02 ± 0.69 mg/Kg and 82.43 ± 5.40, respectively. The plate thrombolytic area and nattokinase activity both increased significantly as fermentation time was increased, indicating that the natto exhibited strong thrombolytic action. Hence, mixed-bacteria fermentation improves the taste, flavor, nattokinase activity, and thrombolysis of natto. This research set the groundwork for the ultimate manufacturing of natto with high nattokinase activity and free amino nitrogen content, as well as good sensory and thrombolytic properties.Yun YangGuangqun LanXueyi TianLaping HeCuiqin LiXuefeng ZengXiao WangMDPI AGarticlenattonattokinasecombination fermentationthrombolytic propertyChemical technologyTP1-1185ENFoods, Vol 10, Iss 2547, p 2547 (2021)
institution DOAJ
collection DOAJ
language EN
topic natto
nattokinase
combination fermentation
thrombolytic property
Chemical technology
TP1-1185
spellingShingle natto
nattokinase
combination fermentation
thrombolytic property
Chemical technology
TP1-1185
Yun Yang
Guangqun Lan
Xueyi Tian
Laping He
Cuiqin Li
Xuefeng Zeng
Xiao Wang
Effect of Fermentation Parameters on Natto and Its Thrombolytic Property
description Natto is a popular food because it contains a variety of active compounds, including nattokinase. Previously, we discovered that fermenting natto with the combination of <i>Bacillus subtilis</i> GUTU09 and <i>Bifidobacterium animalis subsp. lactis</i> BZ25 resulted in a dramatically better sensory and functional quality of natto. The current study further explored the effects of different fermentation parameters on the quality of natto fermented with <i>Bacillus subtilis</i> GUTU09 and <i>Bifidobacterium</i> BZ25, using Plackett–Burman design and response surface methodology. Fermentation temperature, time, and inoculation amount significantly affected the sensory and functional qualities of natto fermented with mixed bacteria. The optimal conditions were obtained as follows: soybean 50 g/250 mL, triangle container, 1% sucrose, <i>Bacillus subtilis</i> GUTU09 to <i>Bifidobacterium</i> BZ25 ratio of 1:1, inoculation 7%, fermentation temperature 35.5 °C, and fermentation time 24 h. Under these conditions, nattokinase activity, free amino nitrogen content, and sensory score were increased compared to those before optimization. They were 144.83 ± 2.66 FU/g, 7.02 ± 0.69 mg/Kg and 82.43 ± 5.40, respectively. The plate thrombolytic area and nattokinase activity both increased significantly as fermentation time was increased, indicating that the natto exhibited strong thrombolytic action. Hence, mixed-bacteria fermentation improves the taste, flavor, nattokinase activity, and thrombolysis of natto. This research set the groundwork for the ultimate manufacturing of natto with high nattokinase activity and free amino nitrogen content, as well as good sensory and thrombolytic properties.
format article
author Yun Yang
Guangqun Lan
Xueyi Tian
Laping He
Cuiqin Li
Xuefeng Zeng
Xiao Wang
author_facet Yun Yang
Guangqun Lan
Xueyi Tian
Laping He
Cuiqin Li
Xuefeng Zeng
Xiao Wang
author_sort Yun Yang
title Effect of Fermentation Parameters on Natto and Its Thrombolytic Property
title_short Effect of Fermentation Parameters on Natto and Its Thrombolytic Property
title_full Effect of Fermentation Parameters on Natto and Its Thrombolytic Property
title_fullStr Effect of Fermentation Parameters on Natto and Its Thrombolytic Property
title_full_unstemmed Effect of Fermentation Parameters on Natto and Its Thrombolytic Property
title_sort effect of fermentation parameters on natto and its thrombolytic property
publisher MDPI AG
publishDate 2021
url https://doaj.org/article/77090cb5066c445281223e3fe8e0c8f3
work_keys_str_mv AT yunyang effectoffermentationparametersonnattoanditsthrombolyticproperty
AT guangqunlan effectoffermentationparametersonnattoanditsthrombolyticproperty
AT xueyitian effectoffermentationparametersonnattoanditsthrombolyticproperty
AT lapinghe effectoffermentationparametersonnattoanditsthrombolyticproperty
AT cuiqinli effectoffermentationparametersonnattoanditsthrombolyticproperty
AT xuefengzeng effectoffermentationparametersonnattoanditsthrombolyticproperty
AT xiaowang effectoffermentationparametersonnattoanditsthrombolyticproperty
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