PHOTOCHEMICAL REACTIONS OF FORMYLMETHYLFLAVIN AND RIBOFLAVIN

Journal Title: Baqai Journal of Health Sciences - Year 2015, Vol 18, Issue 2

Abstract

Formylmethylflavin (FMF) is a major intermediate product in the aerobic and anaerobic photolysis of riboflavin (RF) and is highly sensitive to light and hydrolysis. It is more sensitive to light as compared to RF. FMF is further degraded into lumichrome (LC), carboxymethylflavin (CMF) in acidic medium, and LC, CMF and lumiflavin (LF) in alkaline medium. When FMF is exposed to light it is degraded in to LC and LF via a photoreduction and CMF through photooxidation pathways. In aerobic and anaerobic conditions, RF when exposed to light is excited to singlet state (1RF) and from singlet to triplet state (3RF). This is followed by the conversion of 3RF into a semiquinone radical (RFH) and this radical further disproportionate to form an oxidized RF and a cyclic intermediate, which is further oxidized to FMF and degradation products (LC, LF, CMF).

Authors and Affiliations

Tania Mirza, Zubair Anwar, Samina Shiekh, Iqbal Ahmad

Keywords

Related Articles

ANALYTICAL TECHNIQUES FOR THE DETERMINATION OF MELOXICAM IN PHARMACEUTICAL FORMULATIONS AND BIOLOGICAL SAMPLES

Meloxicam (MX) belongs to the family of oxicams which is the most important group of non steroidal anti-inflammatory drugs (NSAIDs) and is widely used for their analgesics and antipyretic activities. It inhibits both COX...

CORRELATION BETWEEN UMBILICAL CORD BLOOD VOLUME WITH GESTATIONAL AGE AND BIRTH WEIGHT: A BASELINE FOR CORD BLOOD BANKS IN PAKISTAN

Placental vessels contain one-third of newborn blood volume termed as umbilical cord blood (UCB). It is an enriched product with many benefits but unfortunately, it is usually discarded as waste. Since the identification...

A REVIEW ON THE ANALYTICAL TECHNIQUES USED FOR THE DETERMINATION OF PARACETAMOL IN PHARMACEUTICAL FORMULATIONS AND BIOLOGICAL FLUIDS

Paracetamol (PM) is an active metabolite of phenacetin and belongs to p-aminophenol derivatives. It is also termed as acetaminophen. PM is one of the non-steroidal anti-inflammatory drugs (NSAIDs) which is used as an ana...

ROLE OF EXTRA CALORIES ON THE BIRTH WEIGHT OF NEONATES – THE NUTRITIONAL VALUE OF DATES IN PREGNANCY

Date fruits (khajoor) are exclusive source of high nutrition to every individual and have been cultivated in Arab world for centuries. In addition to the dietary benefits of date fruits, they also possess important pharm...

RUBBER DAM PLACEMENT: WHY MAJORITY OF SENIOR DENTISTS PRACTICING IN HA'IL, SAUDI ARABIA IGNORES IT?

Isolation of operating site from saliva and other oral fluids prior to commencing a restorative or endodontic procedure via rubber dam is considered as standard healthcare protocol. Numerous studies have been globally co...

Download PDF file
  • EP ID EP198706
  • DOI -
  • Views 174
  • Downloads 0

How To Cite

Tania Mirza, Zubair Anwar, Samina Shiekh, Iqbal Ahmad (2015). PHOTOCHEMICAL REACTIONS OF FORMYLMETHYLFLAVIN AND RIBOFLAVIN. Baqai Journal of Health Sciences, 18(2), 30-34. https://europub.co.uk/articles/-A-198706