Аннотация к книге "CHEMICAL. Betalains, anthocyanins and carotenoids"
The study aimed to extract red and yellow natural colors from natural sources. Red pigments were extracted from cactus fruits,red beet,red bougainvillea bracts and red cabbage. Furthermore, yellow pigments were extracted from yellow carrot roots,yellow,orange and yellow bougainvillea bracts. Different extract methods,structure, properties,identification and stability of these pigments were studied. Coloring some food products by these pigments extracts was carried out. The obtained data...
The study aimed to extract red and yellow natural colors from natural sources. Red pigments were extracted from cactus fruits,red beet,red bougainvillea bracts and red cabbage. Furthermore, yellow pigments were extracted from yellow carrot roots,yellow,orange and yellow bougainvillea bracts. Different extract methods,structure, properties,identification and stability of these pigments were studied. Coloring some food products by these pigments extracts was carried out. The obtained data summarized that the best method to extract betalains from cactus fruits and red beet was 2% citric acid solution, while for red bougainvillea bracts was distilled water. Cactus fruits contained betacyanins, while red beet contained betacyanins and betaxanthins. On other side, red bougainvillea bracts contained only betanidin but with many derivatives. Betalains of cactus fruits were more stable at different conditions than red beet and red bougainvillea bracts. Cactus fruits pigment extract was the best coloring agent. Finally, the extracted pigment could be useful as coloring agent in many food stuffs with application value.
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В книге приведены примеры решения различных практических задач на языке Python и предложено детальное пошаговое описание процесса написания программы для каждой из них. Подобраны задачи, которые имеют несколько вариантов решений и формируют алгоритмическое мышление. Показаны основы структурного, динамического, объектно-ориентированного, функционального программирования. Приведены способы работы с...
Леонид Юзефович — писатель, историк, лауреат премий “Большая книга” и “Национальный бестселлер”. Автор романов “Казароза” и “Журавли и карлики”, историко-документальных книг “Самодержец пустыни” о бароне Унгерне и “Зимняя дорога. Генерал А.Н.Пепеляев и анархист И.Я.Строд в Якутии”. В книге “Маяк на Хийумаа” собраны рассказы разных лет, в том числе связанные с многолетними историческими...
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