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The aim of this study was to develop a rapid and relatively simple protocol for the simultaneous quantitative determination of the main volatile compounds acetoin and diacetyl found in yogurt. Both these substances are the common flavor components in cultured dairy products. Acetoin/diacetyl determination is important because its concentrations represent criteria for the quality appreciation of the lactic starter cultures. This proposed method employs the reactions of acetoin and diacetyl with 1-naphthol and creat...

Fruit juices are consumed worldwide, not only for their flavour, taste, and freshness, but also due to their beneficial health effects when are consumed regularly. Being relevant sources of vitamins, minerals and polyphenolic compounds many people are becoming aware of the importance of consuming them in their daily diet. The citrus juices, lemon, lime and grapefruit juice is the most appreciated and used because of its flavour and high content of vitamin C. The purpose of this study was to analyze and compare som...

The fruit represents the group of foods with vegetable origin, very precious from nutritional point of view, rich in carbohydrates, cellulose, minerals and organic acids, needed daily for the human body. A popular form often used for preserving fruit in cold periods, are fruit compotes which occupies an important place in our daily diet. Pineapples and mango fruit are consumed fresh, cooked, juiced and also can be preserved. The aim of the study was to evaluate some physicochemical characteristics (pH, total solub...

In the present work for the first time in the world practice 430322 occultations of stars by the Moon are analyzed. The relevance of the work is that the accuracy analysis of stars' proper motion in modern star catalogues can only be conducted using either observations of small planets or occultations, since only those observations are longterm and homogenous in time. When making the occultation database a comparative analysis has been used to study types and accuracy of occultation. For photoelectric observations...

The bioactive compounds in apples and pears might confer many health protective benefits by improving oxidative stress, on the other hand in case of higher than the admitted values, Heavy metals could affect health. Apple and pears are members of the Rosaceae (Rose) family, known for their pomaceous fruits. The aim of this study was to describe the quality traits, the level of antioxidant activity and polyphenol content of some apples and pears available on the Romanian market as well as the heavy metals concentra...