相关实验视频

Updated: May 30, 2025

Construction of Models for Nondestructive Prediction of Ingredient Contents in Blueberries by Near-infrared Spectroscopy Based on HPLC Measurements
10:25

Construction of Models for Nondestructive Prediction of Ingredient Contents in Blueberries by Near-infrared Spectroscopy Based on HPLC Measurements

Published on: June 28, 2016

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[雅库提亚北极地区蓝的化学成分]

U M Lebedeva1,2, T V Sleptsova1,3, V T Vasilyeva1

  • 1M.G. Safronov Yakut Scientific Research Institute of A griculture - Division of Federal Research Centre "The Yakut Scientific Centre of the Siberian Branch of the Russian Academy of Sciences", 677001, Yakutsk, The Republic of Sakha (Yakutia), Russian Federation.

Voprosy pitaniia
|January 31, 2025
PubMed
概括

北极蓝 (Vaccinium uliginosum亚种) 是一种北极蓝. 来自雅库提亚的微纤 L.) 含有丰富的营养素和抗氧化剂. 研究显示,来自北极较冷地区的果中含有更高的维生素C和铁含量,提高了它们的营养价值.

关键词:
雅库提亚的北极地区.亚斯科布酸是什么 亚斯科布酸果 果 果 果蓝 蓝 蓝是一种化学成分 化学成分铁是铁,铁是铁,铁是铁.矿物质是矿物质中的一种.维生素 维生素 维生素 是一种

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Colletotrichum fioriniae Development in Water and Chloroform-based Blueberry and Cranberry Floral Extracts

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Removal of Exogenous Materials from the Outer Portion of Frozen Cores to Investigate the Ancient Biological Communities Harbored Inside09:06

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Published on: July 3, 2016

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相关概念视频

Acidity of 1-Alkynes02:42

Acidity of 1-Alkynes


The acidic strength of hydrocarbons follows the order: Alkynes > Alkenes > Alkanes. The strength of an acid is commonly expressed in units of pKa — the lower the pKa, the stronger the acid. Among the hydrocarbons, terminal alkynes have lower pKa values and are, therefore, more acidic. For example, the pKa values for ethane, ethene, and acetylene are 51, 44, and 25, respectively, as shown here.
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The total amount of energy acquired by primary producers in an ecosystem is called gross primary production (GPP). However, of this energy, producers use some for metabolic processes, and some is lost as heat, decreasing the amount of energy available to the next trophic level. The remaining usable amount of energy is called the net primary productivity (NPP). In terrestrial ecosystems, NPP is driven by climate, while light penetration and nutrient availability drive NPP in aquatic ecosystems.
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Structure and Physical Properties of Alkynes02:37

Structure and Physical Properties of Alkynes

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In nature, compounds containing both carbon and hydrogen are known as "hydrocarbons". Aliphatic hydrocarbons are compounds whose molecules contain saturated single bonds (i.e., alkanes) or unsaturated double or triple bonds. Alkenes contain carbon–carbon double bonds and have a structural formula CnH2n. Unsaturated hydrocarbons containing carbon–carbon triple bonds are called "alkynes" and are structurally represented by the formula CnH2n-2.
The...
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