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Purple bacteria or purple photosynthetic bacteria are Gram-negative proteobacteria that are phototrophic, capable of producing their own food via photosynthesis. They are pigmented with bacteriochlorophyll a or b , together with various carotenoids , which give them colours ranging between purple, red, brown, and orange.
Purple Corn. Purple corn (Spanish: maíz morado) or purple maize is group of flint maize varieties (Zea mays indurata) originating in South America, descended from a common ancestral variety termed "kʼculli" in Quechua. It is most commonly grown in the Andes of Peru, Bolivia and Ecuador.
Black rice has a deep black color and usually turns deep purple when cooked. Its dark purple color is primarily due to its anthocyanin content, which is higher by weight than that of other colored grains. It is suitable for creating porridge, dessert, traditional Chinese black rice cake, bread, and noodles.
The red cabbage (purple-leaved varieties of Brassica oleracea Capitata Group) is a kind of cabbage, also known as Blaukraut after preparation. Its leaves are coloured dark red/purple. However, the plant changes its colour according to the pH value of the soil due to a pigment belonging to anthocyanins. [1]
Ube has stunningly bright purple flesh and a sweet, nutty flavor with hints of vanilla and pistachio, which is why it’s long been a central ingredient in Filipino desserts and some savory dishes.
Blood orange. The blood orange is a variety of orange with crimson, near blood -colored flesh. It is one of the sweet orange varieties ( Citrus × sinensis ). It is also known as the raspberry orange . The dark flesh color is due to the presence of anthocyanins, a family of polyphenol pigments common to many flowers and fruit, but uncommon in ...
Red onions (also known as purple or blue onions in some mainland European countries) are cultivars of the onion (Allium cepa), and have purplish-red skin and white flesh tinged with red. They are most commonly used in cooking, but the skin has also been used as a dye .
Another form of recycling of inorganic nutrients and dissolved organic matter by purple sulfur bacteria is through the food chain; they act as a source of food to other organisms. Some purple sulfur bacteria have evolved to optimize their environmental conditions for their own growth.
This purple yam is popular as lightly deep-fried tempura, as well as being grilled or boiled. Additionally, the purple yam is a common ingredient of yam ice cream with the signature purple color. Purple yam is also used in other types of traditional wagashi sweets, cakes, and candy.
Sprouting broccoli (white or purple) has a larger number of heads with many thin stalks. Purple cauliflower or violet cauliflower is a type of broccoli grown in Europe and North America. It has a head shaped like cauliflower but consists of many tiny flower buds.