LC ESI-MS and FT-IR Analysis of Dendrophthoe pentandra L. Miq Leaf Methanolic Extracts to Identify Compounds with Progesterone-Like Effects

Lazuardi, Mochammad; Hermanto, Bambang

doi:10.3923/pjn.2016.274.282

Cited by 12 publications

(7 citation statements)

References 7 publications

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“…Intraday precision analysis at serial concentrations 0.17, 0.18, 0.19, 0.54, 0.55, 0.56, 0.74, 0.76, 0.78, 0.94, 0.96, and 0.97 µg/ml shows that % CV intraday precision had not more than 3% ( Table 1 ). Aflatoxin B 1 in feed matrix after preparation and separation showed 88-98% recovery ( Table 2 ), and detection and quantification limits were 3.5 × 10 −6 and 1.06 × 10 −5 µg/mL, respectively [ 18 ].…”

Section: Resultsmentioning

confidence: 99%

High-performance liquid chromatography ultraviolet-photodiode array detection method for aflatoxin B1 in cattle feed supplements

Lazuardi¹,

Hermanto²

2017

Vet World

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Aim:The objective of the current study is to determine the concentration of aflatoxin B1 using high-performance liquid chromatography (HPLC) with a photodiode array (PDA) detector.Materials and Methods:Aflatoxin B1 certified reference grade from Trilogy Analytical Laboratory dissolved acetonitrile (ACN) at 10 µg/mL was using standard assessment. HPLC instruments such as ultraviolet-PDA detector used a Shimadzu LC-6AD pump with DGU-20A5 degasser, communication module-20A, and PDA detector SPD-M20A with FRC-10A fraction collector. The HPLC was set isocratic method at 354 nm with a reverse-phase ODS C18 column (LiChrospher® 100 RP-18; diameter, 5 µm) under a 20°C controlled column chamber. Rheodyne® sample loops were performed in 20 µL capacities. The mobile phase was performed at fraction 63:26:11 H2O: methanol:ACN at pH 6.8. A total of 1 kg of feed contained 10% bread crumbs and 30% concentrated, 40% forage, and 20% soybean dregs were using commercials samples. Samples were extracted by ACN and separated with solid phase extraction ODS 1 mL than elution with mobile phase to collect at drying samples performed. The samples were ready to use after added 1 mL mobile phase than injected into the system of HPLC.Results:We found that the retention time of aflatoxin B1 was approximately 10.858 min. Linearity of 0.01-0.08 µg/mL aflatoxin B1 dissolved in mobile phase was obtained at R2=0.9. These results demonstrate that these methods can be used to analyze aflatoxin B1 and gain 89-99% recovery. The limit of detection of this assay was obtained at 3.5 × 10−6 µg/mL.Conclusion:This method was easy to apply and suitable to analyzing at small concentrations of aflatoxin B1 in formulated product of feed cattle.

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Section: Resultsmentioning

confidence: 99%

High-performance liquid chromatography ultraviolet-photodiode array detection method for aflatoxin B1 in cattle feed supplements

Lazuardi¹,

Hermanto²

2017

Vet World

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“…Validation methods started from the 4 th point test as follows: (a) Linearity test to determine the relationship between concentration of analytes to the response detector, (b) intraday precision test, (c) accuration test by assessed recovery levels, and (d) sensitivity test using the method limit of detection (LOD) and limit of quantification (LOQ). Points a, b, and c of the validation method were using triplo iteration between concentrations 0.25 µg/mL and 1.00 µg/mL using the artificial plasma from the goats and liver organs free from residue of the drug as medium matrix biology [ 14 ]. The sensitivity tests used mobile phase solvent of the HPLC system from pH 3.8 to pH 4.00.…”

Section: Methodsmentioning

confidence: 99%

“…The last step was to calculate the LOD and LOQ limit from the equation below with k=3 as the constant. The LOQ was calculated from 3 times the LOD, with as referenced from new techniques reported in the previous studies [ 14 - 17 ].…”

Section: Methodsmentioning

confidence: 99%

Calculate of withdrawal times of clenbuterol in goats to obtain safe times of slaughter

Lazuardi¹,

Hermanto²,

Restiadi³

2018

Vet World

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Background and Aim:Clenbuterol as a β2-agonist drug was investigated according to the concentration of the drug available in the bodies of goats and according to the level of sensitivity of the instruments used for detection. The objective of the current study was to determine withdrawal times after giving a therapeutic dose that resulted in safe slaughters.Materials and Methods:Five healthy male goats with a mean body weight of 20.64 kg were treated with a single dose of 5.10−3 mg/kg in the BW onto jugular vein. Whole blood samples of approximately 5 mL were taken in a time series at 5, 30, 60, 90, 150, 210, 270, 390, 510, 630, and 750 min. At 24 h posttreatment, all subjects were sacrificed, and 300 g samples of the liver were obtained. The plasma concentration and liver residue of the drug were observed by reverse-phase high-performance liquid chromatography.Results:The drug reached a maximum concentration of 19.233±0.331 µg/mL at 5 min, and the elimination half-life was at 173.25 min. The limit detection was obtained at 0.053 µg/mL. A one-way analysis of variance between all goats showed that elimination of the clenbuterol in their bodies was similar (p=1.00), with a withdrawal time of 1,479.326 min and no residues in the liver (p<0.05).Conclusion:Safe times for slaughter were determined to be at 2 days, 13 h, and 12 min as the 2nd safety factor (SF) time and 3 days, 1 h, and 58 min as the 3rd SF time with the liver organ free from residue.elimination half-life, new method for calculating withdrawal time, prescriptions for obtained β2-agonist, residues in liver.

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“…In early 2013, researchers stated that crude methanolic extract from benalu duku leaves was predicted to contain plant hormone compounds for fertilization. Later research explained that crude methanolic extract from benalu duku leaves orally administered to female mice increased their progesterone levels [4,8,9]. Crude extract from benalu duku leaves obtained using maceration method dissolved in methanol was shown to contain four progesterone hormone derivatives with progesterone-like effects.…”

Section: Introductionmentioning

confidence: 99%

Determination of progesterone compounds in the crude methanol extract of benalu duku leaves

2019

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Background and Aim: Dendrophthoe pentandra L. Miq (benalu duku) is a parasitic herb that commonly grows on the host plant Lansium domesticum. Researchers have found that the plant contains anticancer compounds and may contain phytoandrogens, including progesterone-like compounds, in its crude methanol extract. The objective of the current study was to investigate the compound of phyto progesterone in benalu duku leaves after extracted by methanol and prepared using an analytical column of high-performance liquid chromatography (HPLC). Materials and Methods: About 400 g of benalu duku leaves were pulverized, and their compounds were isolated by the isocratic method using an RP-18 analytical column (5 μm) with a mobile phase of 70:30 (methanol: water) in a photodiode array detector adjusted to 254 nm. The phyto progesterone compound was identified at a retention time of approximately 6.01 min. Results: By LC-electrospray ionization mass spectrometry focusing on molecular fractions, the fingerprint area of the Fourier transform-infrared spectroscopy (FT-IR, cm−1) and Hnuclear magnetic resonance (NMR) spectra indicated that the phyto progesterone product isolated was identical to the certified reference material of pure progesterone, particularly the specific functional groups in the FT-IR spectrum at wavenumbers of 1317.43 cm−1 and 1386.86 cm−1 and in the proton HNMR spectrum at carbon 21 of progesterone (p<0.05). Conclusion: Each 49.888 μg/mL of crude benalu duku leaf extract dissolved in the mobile phase contained 28.515±0.713 μg/mL phyto progesterone.

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LC ESI-MS and FT-IR Analysis of Dendrophthoe pentandra L. Miq Leaf Methanolic Extracts to Identify Compounds with Progesterone-Like Effects

Cited by 12 publications

References 7 publications

High-performance liquid chromatography ultraviolet-photodiode array detection method for aflatoxin B1 in cattle feed supplements

High-performance liquid chromatography ultraviolet-photodiode array detection method for aflatoxin B1 in cattle feed supplements

Calculate of withdrawal times of clenbuterol in goats to obtain safe times of slaughter

Determination of progesterone compounds in the crude methanol extract of benalu duku leaves

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