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Št. zadetkov: 8
Development and validation of HPLC-MS/MS method for simultaneous analysis of B vitamins present naturally or after fortification in fruit juices
Hassan Zia, Nadine Fischbach, Mikko Hofsommer, Ana Slatnar
Izvirni znanstveni članek
Oznake: multivitamin;fruit juices;accuracy profile;HPLC-MS/MS;quality control;
In this study, a multivitamin analysis method with a run time of 20 min was developed for nine major B vitamins in fruit juices using HPLC coupled with a triple quadrupole mass spectrometer. A reverse phase column with ammonium formate buffers in methanol and water as mobile phases under gradient el ...
Leto: 2023 Vir: Biotehniška fakulteta (UL BF)
Simultaneous analysis of ascorbic and dehydroascorbic acid in fruit juice using HILIC chromatography coupled with mass spectrometry
Hassan Zia, Nadine Fischbach, Mikko Hofsommer, Ana Slatnar
Izvirni znanstveni članek
Oznake: HPLC-MS/MS;quality control;multifruit juice;fruit juices;ascorbic acid;dehydroascorbic acid;accuracy profile;validation;
A HILIC-MS/MS method was developed for the simultaneous analysis of ascorbic acid (AA) and dehydroascorbic acid (DHA). Ammonium acetate buffer and acetonitrile were used as mobile phases under gradient elution mode at a flow rate of 0.3 mL/min. A SCIEX Triple QUAD 5500+ system was operated under MRM ...
Leto: 2023 Vir: Biotehniška fakulteta (UL BF)
Simultaneous analysis of ascorbic and dehydroascorbic acid in fruit juice using HILIC chromatography coupled with mass spectrometry
Hassan Zia, Nadine Fischbach, Mikko Hofsommer, Ana Slatnar
Ni določena
Oznake: HPLC–MS/MS;quality control;multifruit juice;ascorbic acid;dehydroascorbic acid;accuracy profile;validation;
Method Development The most common technique for developing methods to analyze vitamins is an HPLC system coupled with a mass spectrometer (HPLC-MS). A triple quadrupole mass spectrometer operating under multiple reaction mode was used for analysis. At least two mass transitions per vitamin were se ...
Leto: 2024 Vir: Biotehniška fakulteta (UL BF)
Development and validation of HPLC-MS/MS method for simultaneous analysis of B vitamins present naturally or after fortification in fruit juices
Hassan Zia, Nadine Fischbach, Mikko Hofsommer, Ana Slatnar
Ni določena
Oznake: multivitamin;fruit juices;sccuracy profile;HPLC-MS/MS;quality control;
Method Development The most common technique for developing methods to analyze vitamins is an HPLC system coupled with a mass spectrometer (HPLC-MS). A triple quadrupole mass spectrometer operating under multiple reaction mode was used for analysis. At least two mass transitions per vitamin were se ...
Leto: 2024 Vir: Biotehniška fakulteta (UL BF)
Investigating the effect of ammonium fluoride as an eluent modifier on the response signal of vitamins
Hassan Zia, Nadine Fischbach, Mikko Hofsommer, Ana Slatnar
Ni določena
Oznake: ammonium fluoride;limit of quantitation;recovery;biotin;cyanocobalamin;
Method Development The most common technique for developing methods to analyze vitamins is an HPLC system coupled with a mass spectrometer (HPLC-MS). A triple quadrupole mass spectrometer operating under multiple reaction mode was used for analysis. At least two mass transitions per vitamin were se ...
Leto: 2024 Vir: Biotehniška fakulteta (UL BF)
Comparing the impact of conventional and non-conventional processing technologies on water-soluble vitamins and color in strawberry nectar – a pilot scale study
Hassan Zia, Helena Murray, Mikko Hofsommer, Andrés Moreno Barreto, Dario Pavon-vargas, Alema Puzović, Manfred Gössinger, Ana Slatnar
Izvirni znanstveni članek
Oznake: HPLC-MS/MS;ascorbic acid;dehydroascorbic acid;high-pressure processing;ohmic heating;pulse electric field;thermal processing;
A comprehensive comparison was conducted on the effect of conventional thermal processing (TT), high-pressure processing (HP), pulse electric field (PF), and ohmic heating (OH) on water-soluble vitamins and color retention in strawberry nectar. The ascorbic acid (AA) content increased by 15- and 9-f ...
Leto: 2025 Vir: Biotehniška fakulteta (UL BF)
Comparing the impact of conventional and non-conventional processing technologies on water-soluble vitamins and color in fruit nectars
Hassan Zia, Sebastian Rincon, Manfred Gössinger, Ana Slatnar, Helen Murray, Mikko Hofsommer, Andrés Moreno Barreto, Darío Pavón-Vargas, Alema Puzović, Astrid Gędas
Ni določena
Oznake: HPLC-MS/MS;ascorbic acid;dehydroascorbic acid;high-pressure processing;ohmic heating;pulse electric field;thermal processing;strawberry nectar;
Method Development The most common technique for developing methods to analyze vitamins is an HPLC system coupled with a mass spectrometer (HPLC-MS). A triple quadrupole mass spectrometer operating under multiple reaction mode was used for analysis. At least two mass transitions per vitamin were se ...
Leto: 2024 Vir: Biotehniška fakulteta (UL BF)
Apple pomace as a potential source of oxidative stress-protecting dihydrochalcones
Ibrahim Rabeeah, Viktoria Gruber-Schmidt, Helena Murray, Negin Afsharzadeh, Renate Paltram, Silvija Marinovic, Hassan Zia, Ana Slatnar, Manfred Gössinger, Christian Haselmair-Gosch
Izvirni znanstveni članek
Oznake: apple;Malus x domestica;pomace juice;juice processing;phloridizin;dihydrochalcones;phenolics;antioxidant activity;Ferric Reducing Antioxidant Power (FRAP);
Among fruits, the apple is unique for producing large amounts of the dihydrochalcone phloridzin, which, together with phloretin, its aglycone, is valuable to the pharmaceutical and food industries for its antidiabetic, antioxidant, and anticarcinogenic properties, as well as its use as a sweetener. ...
Leto: 2024 Vir: Biotehniška fakulteta (UL BF)
Št. zadetkov: 8
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