SU1432399A1 - Method of quantitative analysis of phytin in vegetable fodder - Google Patents
Method of quantitative analysis of phytin in vegetable fodder Download PDFInfo
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- SU1432399A1 SU1432399A1 SU874224075A SU4224075A SU1432399A1 SU 1432399 A1 SU1432399 A1 SU 1432399A1 SU 874224075 A SU874224075 A SU 874224075A SU 4224075 A SU4224075 A SU 4224075A SU 1432399 A1 SU1432399 A1 SU 1432399A1
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- SU
- USSR - Soviet Union
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- phytin
- iron
- extract
- cation exchanger
- hydrochloric acid
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N30/00—Investigating or analysing materials by separation into components using adsorption, absorption or similar phenomena or using ion-exchange, e.g. chromatography or field flow fractionation
- G01N30/02—Column chromatography
- G01N30/04—Preparation or injection of sample to be analysed
- G01N30/06—Preparation
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N30/00—Investigating or analysing materials by separation into components using adsorption, absorption or similar phenomena or using ion-exchange, e.g. chromatography or field flow fractionation
- G01N30/02—Column chromatography
- G01N30/04—Preparation or injection of sample to be analysed
- G01N30/06—Preparation
- G01N2030/062—Preparation extracting sample from raw material
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N30/00—Investigating or analysing materials by separation into components using adsorption, absorption or similar phenomena or using ion-exchange, e.g. chromatography or field flow fractionation
- G01N30/02—Column chromatography
- G01N30/62—Detectors specially adapted therefor
- G01N30/74—Optical detectors
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
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- Analytical Chemistry (AREA)
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- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
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- Pathology (AREA)
- Investigating Or Analysing Biological Materials (AREA)
Abstract
Изобретение относитс к аналитической химии и может быть использовано дл определени фитина в растительных кормах методом жидкостной хроматографии. Цель изобретени - повьшение чувствительности и сокращение времени анализа. Фитин экстрагируют из растительных кормов сол ной кислотой и отдел ют экстракт от нерастворимого осадка центрифугированием. Полученный экстракт пропускают через хроматографическую колонку с сильнокислотным компонентом, содержащим 0,1-1 мг-экв железа в 1 г катионита. В качестве элюент.а используют 0,4- 0,8 М раствор сол ной кислоты. Определ ют фитин спектрофотометри- чески в УФ-спектре по светопоглоще- нию фитинового комплекса с железом. 2 з.п. ф-лы, 2 табл. i (Л сThis invention relates to analytical chemistry and can be used to determine phytin in vegetable feed by liquid chromatography. The purpose of the invention is to increase the sensitivity and reduce the analysis time. Phytin is extracted from vegetable feeds with hydrochloric acid and the extract is separated from the insoluble precipitate by centrifugation. The extract obtained is passed through a chromatographic column with a strongly acid component containing 0.1–1 mg-eq of iron in 1 g of cation exchanger. A 0.4-0.8 M solution of hydrochloric acid is used as eluent. Phytin is determined spectrophotometrically in the UV spectrum by light absorption of the phytin complex with iron. 2 hp f-ly, 2 tab. i (L s
Description
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Изобретение относитс к аналитической химии и может быть использовано дл определени фитина в растительных кормах методом ащкостной хроматографии .This invention relates to analytical chemistry and can be used to determine phytin in vegetable feeds by acid chromatography.
Цель изобретен1г - повышение чувствительности и сокращение времени ггнализа.The purpose of the invention is to increase the sensitivity and reduce the time of testing.
Способ осуществл ют следующим образом , : .The method is carried out as follows:
Экстрагируют фитин из раститаль- 11ЫХ кормов сол ной кислотой и отдел ют экстракт от нерастворимого осадPhytin is extracted from vegetable feed with hydrochloric acid and the extract is separated from insoluble precipitate.
ка центрифугированием. Полученный экстракт пропускают через хромато- графическую колонку с сильнокислотным катпонитом, Например полисти- рольньгм катионитом КУ-2, содержащим 0,1-1,0 мг-экв железа в 1 г катиони- та. В качестве элюента используют 0,4-0,8 М раствор сол ной кислоты. Определ ют фитин спектрофотометриче- ски в УФ-спектре по светопоглощению фитинового комплекса с железом. В сачестве раствора сравнени используют элюент, пропущепный через колонку перед введением экстракта.ka centrifugation. The extract obtained is passed through a chromatographic column with a strongly acidic caponite, for example a polystyrene cation exchanger KU-2, containing 0.1-1.0 mEq of iron per 1 g of cation exchanger. A 0.4-0.8 M solution of hydrochloric acid is used as eluent. Phytin is determined spectrophotometrically in the UV spectrum by absorbing the phytin complex with iron. As a comparison solution, an eluent is passed through the column before introducing the extract.
Пример 1. Определение фитина в искусственных растворах, 0,5- 5 мл исходного раствора фитина в 0,33 М сол ной кислоте ввод т в хро- матографическуш колонку с катионитом содержащим 0,1-1,0 мг-экв железа в 1 г катионита. Образовавшийс в колоке фитиновый комплекс с железом элю- ируют 0,4-0,8 М сол ной кислотой,- отбирают фракцию фитинового комплекса с железом по времени выхода из колонки и спектрофотометрируют в УФ-спек- тре при 240 нм. Расчет содержани фитина ведут по величине светопоглоще- ни фитинового комплекса с железом.Example 1. Determination of phytin in artificial solutions, 0.5-5 ml of the initial solution of phytin in 0.33 M hydrochloric acid is introduced into a chromatographic column with cation exchanger containing 0.1-1.0 mEq of iron per g cation exchanger. The phytin complex formed with choke with iron is eluted with 0.4–0.8 M hydrochloric acid, a fraction of the phytin complex with iron is taken at the time of exit from the column and spectrophotometrized in the UV spectrum at 240 nm. The calculation of the phytin content is based on the size of the absorption of the phytin complex with iron.
Результаты определени фитина в искусственных растворах представлены п табл. 1 tThe results of the determination of phytin in artificial solutions are presented in table. 1 t
Как видно из представленных в табл, 1 данных, чувствительность определени фитина в искусственных растворах равна 0,0015%. Относительное стандартное отклонение не превышает 0,05, Определению фитнна не мешают более, чем 60-кратные избытки неорганических фосфатов.As can be seen from the data presented in Table 1, the sensitivity of the determination of phytin in artificial solutions is 0.0015%. The relative standard deviation does not exceed 0.05, more than 60-fold excesses of inorganic phosphates do not interfere with the fitment determination.
Пример 2, Определение фитина в растительных кормах. НавескуExample 2, Determination of phytin in vegetable feed. Hitch plate
00
5five
00
5five
00
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5five
5five
00
5five
корма 0,2-1,0 заливают 0,35 М сол ной кислотой, экстрагируют фитин в течение 120 мин и отдел ют экстракт фитина,feed 0.2-1.0 is filled with 0.35 M hydrochloric acid, phytin is extracted for 120 minutes and phytin extract is separated,
0,5-5 мл экстракта фитина ввод т в хроматографическую колонку с катионитом , содержащим 0,1-1,0 мг-экв железа в 1 г катионита. Образовавшийс в колонке фитиновый комплекс с железом элюируют 0,4-0,8 М сол ной кислотой, отбирают фракцию, содержащую фитиновьй комплекс с железом , по времени выхода из колонки и спектрофотометрируют в УФ-спектре при 240 нм. Расчет фитина ведут по величине светопоглощени фитинового комплекса с железом.0.5-5 ml of phytin extract is introduced into a chromatographic column with a cation exchange resin containing 0.1-1.0 mg-eq of iron per 1 g of cation resin. The phytin complex with iron formed in the column was eluted with 0.4–0.8 M hydrochloric acid, the fraction containing the phytin complex with iron was collected at the time of exit from the column and spectrophotometrized in the UV spectrum at 240 nm. Phytin is calculated by the amount of light absorption of the phytin complex with iron.
Результаты определени фитина в растительных кормах: представлены в табл, 2,The results of the determination of phytin in vegetable feeds are presented in Table 2,
Аналогтпю определ ют фитин в других растительных кормах, при этом относительное стандартное отклонение f не превышает 0,05.Analogy is determined by phytin in other vegetable feeds, while the relative standard deviation f does not exceed 0.05.
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SU874224075A SU1432399A1 (en) | 1987-04-07 | 1987-04-07 | Method of quantitative analysis of phytin in vegetable fodder |
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SU874224075A SU1432399A1 (en) | 1987-04-07 | 1987-04-07 | Method of quantitative analysis of phytin in vegetable fodder |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
RU2680833C1 (en) * | 2018-01-23 | 2019-02-28 | федеральное государственное бюджетное образовательное учреждение высшего образования "Воронежский государственный университет" (ФГБОУ ВО "ВГУ") | Method for determining salts of phytic acid in plant seeds |
-
1987
- 1987-04-07 SU SU874224075A patent/SU1432399A1/en active
Non-Patent Citations (1)
Title |
---|
Ярош Н.П. Определение веществ, содержащих фосфор или серу.- В кн. Методы биохимического исследовани растений.-М.: Колос, 1972, с.320- 322. Ellis К., Morris -Е., Philpot С. Auant itative Determination of Phytate in the Presence of High Inorganic Phosphate.- Analytical Biochemistry, 1977, V. 77, p. 536-539. * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
RU2680833C1 (en) * | 2018-01-23 | 2019-02-28 | федеральное государственное бюджетное образовательное учреждение высшего образования "Воронежский государственный университет" (ФГБОУ ВО "ВГУ") | Method for determining salts of phytic acid in plant seeds |
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