نتایج جستجو برای: bio decaffeination

تعداد نتایج: 60569  

Journal: :progress in biological sciences 2013
morahem ashengroph maryam borchaluei

there is a great call for using microbial bio-decaffeination approach to remove caffeinefrom caffeinated products and industrial wastes. we aimed in this study to screen strainsof yeasts which exhibit high caffeine tolerance and to investigate the bio-degradation ofcaffeine under growth conditions. sixteen yeast strains were isolated from the cultivatedtea soils collected from sites of northern...

There is a great call for using microbial bio-decaffeination approach to remove caffeinefrom caffeinated products and industrial wastes. We aimed in this study to screen strainsof yeasts which exhibit high caffeine tolerance and to investigate the bio-degradation ofcaffeine under growth conditions. Sixteen yeast strains were isolated from the cultivatedtea soils collected from sites of northern...

Journal: :Journal of agricultural and food chemistry 2006
Adriana Farah Tomas de Paulis Daniel P Moreira Luiz C Trugo Peter R Martin

The market for decaffeinated coffees has been increasingly expanding over the years. Caffeine extraction may result in losses of other compounds such as chlorogenic acids (CGA) and, consequently, their 1,5-gamma-quinolactones (CGL) in roasted coffee. These phenolic compounds are important for flavor formation as well as the health effects of coffee; therefore, losses due to decaffeination need ...

Journal: :IEEE Expert 1997
Boi Faltings

AT THE SWISS FEDERAL INSTItute of Technology’s Artificial Intelligence Laboratory, we have developed an approach that combines qualitative reasoning and memory-based reasoning, thereby exploiting their strengths and compensating for their weaknesses. We have applied this approach to two processes: coffee roasting and decaffeination. Both applications used large amounts of data collected from pl...

Journal: :Nippon Shokuhin Kagaku Kogaku Kaishi 2018

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه شاهد - دانشکده دندانپزشکی 1394

چکیده سابقه و هدف polyetheretherketone یک پلیمر نیمه کریستالینی با عملکرد عالی است که در ساخت پروتزهای دندانی تحت عنوان bio hpp به کار گرفته شده است. نسل قبلی آن نیز، bio xs از گروه پلی اترکتون ها بوده ولی فاقد فیلرهای سرامیکی بوده است. در راستای ارزیابی ادعای سازندگان درباره ی خصوصیات مکانیکی این رزین ها؛ تحقیق حاضر با هدف مقایسه ی استحکام خمشی و کششی رزین های ترموپلاستیک bio hpp و bio xs د...

2015
Ryan M Summers Sujit K Mohanty Sridhar Gopishetty Mani Subramanian

The ability of bacteria to grow on caffeine as sole carbon and nitrogen source has been known for over 40 years. Extensive research into this subject has revealed two distinct pathways, N-demethylation and C-8 oxidation, for bacterial caffeine degradation. However, the enzymological and genetic basis for bacterial caffeine degradation has only recently been discovered. This review article discu...

Journal: :Pelita Perkebunan (a Coffee and Cocoa Research Journal) 2011

Journal: :Journal of the agricultural chemical society of Japan 1990

2015
Cristina Vilanova Alba Iglesias Manuel Porcar

Microbial communities are ubiquitous in both natural and artificial environments. However, microbial diversity is usually reduced under strong selection pressures, such as those present in habitats rich in recalcitrant or toxic compounds displaying antimicrobial properties. Caffeine is a natural alkaloid present in coffee, tea and soft drinks with well-known antibacterial properties. Here we pr...

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