scholarly journals GREEN REDUCTION OF SOME AROMATIC NITRO COMPOUNDS BY IMMOBILIZED BAKER’S YEAST

2021 ◽  
pp. 252-255
Author(s):  
Sharma S.K ◽  
Sharma A
Keyword(s):  
Chemical Reduction ◽  
Microbial Transformation ◽  
Nitro Compounds ◽  
Baker’S Yeast ◽  
Chromatographic Technique ◽  
Baker's Yeast ◽  
Yeast Saccharomyces Cerevisiae ◽  
Nitrobenzoic Acid ◽  
Aromatic Nitro Compounds ◽  
Aromatic Nitro

Green chemical reduction of selected aromatic nitro compounds like o-nitrobenzoic acid, m-nitrobenzoic acid and p-nitrobenzoic acid will be done by involving microbial transformation. In microbial transformation Baker’s Yeast (Saccharomyces cerevisiae) is used in immobilized form. Utilisation of baker’s yeast for reduction of nitro compounds is cost effective and environmental friendly .The reduction products will be isolated and purified by chromatographic techniques and characterized on the basis of spectral analysis viz. IR, NMR spectral data. KEYWORDS: Baker’s Yeast, Chromatographic technique, Green reduction, Microbial transformation, Spectroscopic technique.

Reduction of Hetero-aromatic Nitro Compounds with Baker's Yeast

Heterocycles ◽  
1990 ◽  
Vol 31 (12) ◽  
pp. 2201 ◽  
Author(s):  
Mitsuhiro Takeshita ◽  
Sachiko Yoshida
Keyword(s):  
Nitro Compounds ◽  
Baker’S Yeast ◽  
Baker's Yeast ◽  
Aromatic Nitro Compounds ◽  
Aromatic Nitro

scholarly journals Reduction of aromatic nitro compounds with baker's yeast.

1989 ◽  
Vol 37 (3) ◽  
pp. 615-617 ◽  
Author(s):  
Mitsuhiro TAKESHITA ◽  
Sachiko YOSHIDA ◽  
Rieko KIYA ◽  
Naoko HIGUCHI ◽  
Yumi KOBAYASHI
Keyword(s):  
Nitro Compounds ◽  
Baker’S Yeast ◽  
Baker's Yeast ◽  
Aromatic Nitro Compounds ◽  
Aromatic Nitro

Selective reduction of aromatic nitro compounds to aromatic amines by Baker's Yeast in basic solution

1994 ◽  
Vol 35 (23) ◽  
pp. 3965-3966 ◽  
Author(s):  
Woonphil Baik ◽  
Jeong Lim Han ◽  
Ki Chang Lee ◽  
Nam Ho Lee ◽  
Byeong Hyo Kim ◽  
...  
Keyword(s):  
Aromatic Amines ◽  
Selective Reduction ◽  
Nitro Compounds ◽  
Baker’S Yeast ◽  
Basic Solution ◽  
Baker's Yeast ◽  
Aromatic Nitro Compounds ◽  
Aromatic Nitro

The use of β-glucan extracted from baker’s yeast (Saccharomyces cerevisiae) to increase non-specific immune system and resistence of tilapia (Oreochromis niloticus) to Aeromonas hydrophila

2013 ◽  
pp. 92
Author(s):  
Ida N Jamal ◽  
Reiny A Tumbol ◽  
Remy E.P Mangindaan
Keyword(s):  
Saccharomyces Cerevisiae ◽  
Immune System ◽  
Aeromonas Hydrophila ◽  
Phagocytic Activity ◽  
Baker’S Yeast ◽  
Baker's Yeast ◽  
Yeast Saccharomyces Cerevisiae ◽  
Randomized Design ◽  
The Difference ◽  
Motile Aeromonas Septicaemia

Motile Aeromonas Septicaemia disease (MAS) attacking tilapia has increased in recent years as a consequence of intensive aquaculture activities, which led to losses in aquaculture industry. The agent causing MAS disease is Aeromonas hydrophila. The disease can be controlled with the β-glucan. As immunostimulants, β-glucans can also increase resistance in farmed tilapia. Studies on the use of β-glucan extracted from baker's yeast Saccharomyces cerevisiae was intended to evaluate the non-specific immune system of tilapia that were challenged with Aeromonas hydrophila. The method used was an experimental method with a completely randomized design consisting of four treatments with three replicats. The dose of β-glucan used as treatments were 0 mg.kg-1 fish (Control), 5 mg.kg-1 fish (B), 10 mg.kg-1 fish (C) and 20 mg.kg-1 fish (D), each treatment as injected three times at intervals of 3 days, the injection volume of 0.5 ml/fish for nine days and resistance surveillance for seven days. The results showed that the difference in the amount of β-glucan and the frequency of the injected real influence on total leukocytes, phagocytic activity and resistance. Total leukocytes, phagocytic activity and resistance to treatment was best achieved by the administration of C a dose of  10 mg.kg-1 of the fish© Penyakit Motil Aeromonas Septicaemia (MAS) yang menyerang ikan nila mengalami peningkatan selama beberapa tahun terakhir sebagai konsekuensi dari kegiatan akuakultur intensif, yang menyebabkan kerugian dalam industri budidaya. Agen utama penyebab penyakit MAS adalah Aeromonas hydrophila. Untuk mengendalikan penyakit tersebut dapat dilakukan dengan pemberian β-glukan. Sebagai imunostimulan, β-glukan juga dapat  meningkatkan resistensi pada ikan nila yang dibudidayakan. Pengkajian mengenai pemanfaatan β-glukan yang diekstrak dari ragi roti Saccharomyces cerevisiae dimaksudkan untuk menguji sistem imun non spesifik ikan nila yang diuji tantang dengan bakteri Aeromonas hydrophila. Metode yang digunakan yaitu metode eksperimen dengan rancangan acak lengkap yang terdiri dari empat perlakuan dan tiga ulangan. Dosis β-glukan  yang digunakan sebagai perlakuan sebesar 0 mg.kg-1 ikan (Kontrol), 5 mg.kg-1 ikan (B), 10 mg.kg-1 ikan (C) dan 20 mg.kg-1 ikan (D), masing-masing perlakuan diinjeksi sebanyak 3 kali dengan interval waktu 3 hari selama 9 hari, volume injeksi 0,5 mL/ekor ikan dan pengamatan resistensi selama tujuh hari. Hasil penelitian menunjukkan perbedaan jumlah β-glukan dan frekuensi pemberian yang diinjeksikan memberikan pengaruh nyata terhadap total leukosit, aktivitas fagositosis dan resistensi. Total leukosit, aktivitas fagositosis dan resistensi terbaik dicapai pada perlakuan C dengan dosis 10 mg.kg-1 ikan©

Sign in / Sign up

Export Citation Format

Share Document