Determination of Organic Compounds, Fulvic Acid, Humic Acid, and Humin in Peat and Sapropel Alkaline Extracts

被引：48

作者：

Jarukas, Laurynas ^{[1
]}

Ivanauskas, Liudas ^{[1
]}

Kasparaviciene, Giedre ^{[2
]}

Baranauskaite, Juste ^{[1
]}

Marksa, Mindaugas ^{[1
]}

Bernatoniene, Jurga ^{[2
]}

机构：

[1] Lithuanian Univ Hlth Sci, Dept Analyt & Toxicol Chem, Sukileliu Av 13, LT-50161 Kaunas, Lithuania

[2] Lithuanian Univ Hlth Sci, Dept Drug Technol & Social Pharm, LT-50161 Kaunas, Lithuania

来源：

MOLECULES | 2021年 / 26卷 / 10期

关键词：

organic compounds; fulvic acid; humic acid and humin; peat; SUBSTANCES; SIZE;

D O I：

10.3390/molecules26102995

中图分类号：

Q5 [生物化学]; Q7 [分子生物学];

学科分类号：

071010 ; 081704 ;

摘要：

Black, brown, and light peat and sapropel were analyzed as natural sources of organic and humic substances. These specific substances are applicable in industry, agriculture, the environment, and biomedicine with well-known and novel approaches. Analysis of the organic compounds fulvic acid, humic acid, and humin in different peat and sapropel extracts from Lithuania was performed in this study. The dominant organic compound was bis(tert-butyldimethylsilyl) carbonate, which varied from 6.90% to 25.68% in peat extracts. The highest mass fraction of malonic acid amide was in the sapropel extract; it varied from 12.44% to 26.84%. Significant amounts of acetohydroxamic, lactic, and glycolic acid derivatives were identified in peat and sapropel extracts. Comparing the two extraction methods, it was concluded that active maceration was more efficient than ultrasound extraction in yielding higher amounts of organic compounds. The highest amounts of fulvic acid (1%) and humic acid and humin (15.3%) were determined in pure brown peat samples. This research on humic substances is useful to characterize the peat of different origins, to develop possible aspects of standardization, and to describe potential of the chemical constituents.

引用

页数：10

共 33 条

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