Hafiz Rubnawaz - Academia.edu (original) (raw)
Related Authors
Jahanzeb College Swat Khyber Pukhtunkhwa, Pakistan
National Institute of Food Technology Entrepreneurship and Management (NIFTEM)
Uploads
Papers by Hafiz Rubnawaz
Journal of Sustainable Environmental
A wide variety of local crops and food products contain aflatoxins (AFs), which are food pollutan... more A wide variety of local crops and food products contain aflatoxins (AFs), which are food pollutants. The species of Aspergillus flavus and A. parasiticus create them under favorable conditions, such as high temperature and moisture, and they are extremely poisonous and carcinogenic. The distribution of aflatoxins (AFs) contamination in food commodities varies throughout the year due to specific temperatures and humidity in each month. Therefore, the present study was designed to assess humidity & temperature effects of each month’s Aflatoxins occurrences in rice. In this regard, 120 basmati rice samples were collected from various rice vendors during a different period in 2021 and quantified the AFs contamination using high pressure liquid chromatography with fluorescence detection and Kobra Cell™ Derivatization. About 72% of samples were found contaminated with Aflatoxins, ranging from 0.36–6.35 µgkg-1 and an average of 1.31 µgkg-1. Furthermore, in 95% samples contain AFs levels lo...
Zeitschrift für Naturforschung B, 1999
Two new monoterpene glycosides, wurdin and benzoylwurdin along with known compounds, paeoniflorin... more Two new monoterpene glycosides, wurdin and benzoylwurdin along with known compounds, paeoniflorin. lactiflorin and oxypaeoniflorin have been isolated from Paeonia emodi. The identity of new compounds have been established by a combination of spectroscopic techniques and chemical transformations.
Phytochemistry, 1999
A new withanolide 3b,17b-dihydroxy-14,20-epoxy-1-oxo-22R-witha-5,24-dienolide has been isolated f... more A new withanolide 3b,17b-dihydroxy-14,20-epoxy-1-oxo-22R-witha-5,24-dienolide has been isolated from Ajuga parvi¯ora and its structure elucidated through spectroscopy including 2D NMR. This is the ®rst report of the natural occurrence of withanolides in the Labiatae.
Journal of Sustainable Environmental
A wide variety of local crops and food products contain aflatoxins (AFs), which are food pollutan... more A wide variety of local crops and food products contain aflatoxins (AFs), which are food pollutants. The species of Aspergillus flavus and A. parasiticus create them under favorable conditions, such as high temperature and moisture, and they are extremely poisonous and carcinogenic. The distribution of aflatoxins (AFs) contamination in food commodities varies throughout the year due to specific temperatures and humidity in each month. Therefore, the present study was designed to assess humidity & temperature effects of each month’s Aflatoxins occurrences in rice. In this regard, 120 basmati rice samples were collected from various rice vendors during a different period in 2021 and quantified the AFs contamination using high pressure liquid chromatography with fluorescence detection and Kobra Cell™ Derivatization. About 72% of samples were found contaminated with Aflatoxins, ranging from 0.36–6.35 µgkg-1 and an average of 1.31 µgkg-1. Furthermore, in 95% samples contain AFs levels lo...
Zeitschrift für Naturforschung B, 1999
Two new monoterpene glycosides, wurdin and benzoylwurdin along with known compounds, paeoniflorin... more Two new monoterpene glycosides, wurdin and benzoylwurdin along with known compounds, paeoniflorin. lactiflorin and oxypaeoniflorin have been isolated from Paeonia emodi. The identity of new compounds have been established by a combination of spectroscopic techniques and chemical transformations.
Phytochemistry, 1999
A new withanolide 3b,17b-dihydroxy-14,20-epoxy-1-oxo-22R-witha-5,24-dienolide has been isolated f... more A new withanolide 3b,17b-dihydroxy-14,20-epoxy-1-oxo-22R-witha-5,24-dienolide has been isolated from Ajuga parvi¯ora and its structure elucidated through spectroscopy including 2D NMR. This is the ®rst report of the natural occurrence of withanolides in the Labiatae.