Extending the Storage Time of <em>Clanis bilineata tsingtauica</em> (Lepidoptera; Sphingidae) Eggs through Variable-Temperature Cold Storage

<i>Clanis bilineata tsingtauica</i> Mell, 1922 (Lepidoptera, Sphingidae), also known as “Doudan” in China, is an important pest in legume crops. As an edible insect, it is most commonly consumed in Jiangsu, Shandong, and Henan Provinces. Mass rearing requires access to large numbers of e...

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Autores principales:	Chenxu Zhu, Ming Zhao, Haibo Zhang, Fang Zhang, Yuzhou Du, Mingxing Lu
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	<i>Clanis bilineata tsingtauica</i> edible insects cold storage temperature artificial breeding Chemical technology TP1-1185
Acceso en línea:	https://doaj.org/article/b46d58bb86e5458bad5758f1da44a250
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id	oai:doaj.org-article:b46d58bb86e5458bad5758f1da44a250
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spelling	oai:doaj.org-article:b46d58bb86e5458bad5758f1da44a2502021-11-25T17:36:00ZExtending the Storage Time of <em>Clanis bilineata tsingtauica</em> (Lepidoptera; Sphingidae) Eggs through Variable-Temperature Cold Storage10.3390/foods101128202304-8158https://doaj.org/article/b46d58bb86e5458bad5758f1da44a2502021-11-01T00:00:00Zhttps://www.mdpi.com/2304-8158/10/11/2820https://doaj.org/toc/2304-8158<i>Clanis bilineata tsingtauica</i> Mell, 1922 (Lepidoptera, Sphingidae), also known as “Doudan” in China, is an important pest in legume crops. As an edible insect, it is most commonly consumed in Jiangsu, Shandong, and Henan Provinces. Mass rearing requires access to large numbers of eggs. This stage, however, is of short duration and supplies are frequently not sufficient for insect production. Therefore, we identified the cold storage conditions for <i>C. bilineata tsingtauica</i> that can effectively prolong the storage time of the eggs, to make supplies more readily available. We found that when stored at 4 °C, only 7.5% of the eggs hatched after 7 days, while at 10 °C the hatch rate was 78.3%. At 15 °C, the egg hatch rate remained at this same level (77.8% even after 14–20 days). Considering various combinations, we found that optimal egg hatch occurred if eggs were stored at 15 °C for 11 days, and then held at 15–20 °C under dark conditions. Stored as described above, the egg hatch rate was not significantly different from the control group (at 28 °C). These conditions allow for easier mass rearing of <i>C. bilineata tsingtauica</i> by providing a stable supply of eggs.Chenxu ZhuMing ZhaoHaibo ZhangFang ZhangYuzhou DuMingxing LuMDPI AGarticle<i>Clanis bilineata tsingtauica</i>edible insectscold storagetemperatureartificial breedingChemical technologyTP1-1185ENFoods, Vol 10, Iss 2820, p 2820 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	<i>Clanis bilineata tsingtauica</i> edible insects cold storage temperature artificial breeding Chemical technology TP1-1185
spellingShingle	<i>Clanis bilineata tsingtauica</i> edible insects cold storage temperature artificial breeding Chemical technology TP1-1185 Chenxu Zhu Ming Zhao Haibo Zhang Fang Zhang Yuzhou Du Mingxing Lu Extending the Storage Time of <em>Clanis bilineata tsingtauica</em> (Lepidoptera; Sphingidae) Eggs through Variable-Temperature Cold Storage
description	<i>Clanis bilineata tsingtauica</i> Mell, 1922 (Lepidoptera, Sphingidae), also known as “Doudan” in China, is an important pest in legume crops. As an edible insect, it is most commonly consumed in Jiangsu, Shandong, and Henan Provinces. Mass rearing requires access to large numbers of eggs. This stage, however, is of short duration and supplies are frequently not sufficient for insect production. Therefore, we identified the cold storage conditions for <i>C. bilineata tsingtauica</i> that can effectively prolong the storage time of the eggs, to make supplies more readily available. We found that when stored at 4 °C, only 7.5% of the eggs hatched after 7 days, while at 10 °C the hatch rate was 78.3%. At 15 °C, the egg hatch rate remained at this same level (77.8% even after 14–20 days). Considering various combinations, we found that optimal egg hatch occurred if eggs were stored at 15 °C for 11 days, and then held at 15–20 °C under dark conditions. Stored as described above, the egg hatch rate was not significantly different from the control group (at 28 °C). These conditions allow for easier mass rearing of <i>C. bilineata tsingtauica</i> by providing a stable supply of eggs.
format	article
author	Chenxu Zhu Ming Zhao Haibo Zhang Fang Zhang Yuzhou Du Mingxing Lu
author_facet	Chenxu Zhu Ming Zhao Haibo Zhang Fang Zhang Yuzhou Du Mingxing Lu
author_sort	Chenxu Zhu
title	Extending the Storage Time of <em>Clanis bilineata tsingtauica</em> (Lepidoptera; Sphingidae) Eggs through Variable-Temperature Cold Storage
title_short	Extending the Storage Time of <em>Clanis bilineata tsingtauica</em> (Lepidoptera; Sphingidae) Eggs through Variable-Temperature Cold Storage
title_full	Extending the Storage Time of <em>Clanis bilineata tsingtauica</em> (Lepidoptera; Sphingidae) Eggs through Variable-Temperature Cold Storage
title_fullStr	Extending the Storage Time of <em>Clanis bilineata tsingtauica</em> (Lepidoptera; Sphingidae) Eggs through Variable-Temperature Cold Storage
title_full_unstemmed	Extending the Storage Time of <em>Clanis bilineata tsingtauica</em> (Lepidoptera; Sphingidae) Eggs through Variable-Temperature Cold Storage
title_sort	extending the storage time of <em>clanis bilineata tsingtauica</em> (lepidoptera; sphingidae) eggs through variable-temperature cold storage
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/b46d58bb86e5458bad5758f1da44a250
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Extending the Storage Time of <em>Clanis bilineata tsingtauica</em> (Lepidoptera; Sphingidae) Eggs through Variable-Temperature Cold Storage

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