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Article

58 Citations

9,391 Views

12 Pages

Selective Separation of Fluorite, Barite and Calcite with Valonea Extract and Sodium Fluosilicate as Depressants

Zijie Ren,
Futao Yu,
Huimin Gao,
Zhijie Chen,
Yongjun Peng and
Lingyun Liu

Minerals2017, 7(2), 24;https://doi.org/10.3390/min7020024

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16 February 2017

Fluorite, barite and calcite are important industry minerals. However, they often co-exist, presenting difficulty in selectively separating them due to their similar surface properties. In this study, valonea extract and sodium fluosilicate were used...

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Article

298 Views

19 Pages

Effects of Steam Explosion-Assisted Extraction on the Structural Characteristics, Phenolic Profile, and Biological Activity of Valonea

Zhenkai Tong,
Wenjun Li,
Jianxin Jiang and
Chengzhang Wang

Foods2025, 14(23), 4096;https://doi.org/10.3390/foods14234096

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28 November 2025

Valonea, a natural product from Quercus variabilis, is rich in bioactive phenolic compounds; however, its compact physical structure restricts the efficient extraction of these components, limiting its high-value applications. To address this issue,...

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Article

32 Citations

4,860 Views

18 Pages

Valonea Tannin: Tyrosinase Inhibition Activity, Structural Elucidation and Insights into the Inhibition Mechanism

Jiaman Liu,
Yuqing Liu,
Xiaofeng He,
Bo Teng and
Jacqui M. McRae

Molecules2021, 26(9), 2747;https://doi.org/10.3390/molecules26092747

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7 May 2021

Valonea tannin is a natural product readily extracted from acorn shells that has been suggested to have potential skin whitening properties. This study investigated the tyrosinase inhibition activity of extracted valonea tannin and the associated str...

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