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Spirulina can be fed up to 10% for poultry [25] and less than 4% for quail. [26] An increase in spirulina content up to 40 g/kg (0.64 oz/lb) for 16 days in 21-day-old broiler male chicks resulted in yellow and red coloration of flesh, possibly due to the accumulation of the yellow pigment zeaxanthin. [27]
Natural protein concentrates (often used in bodybuilding or as sports dietary supplements): Soy protein isolate (prepared with sodium or potassium): 80.66; Whey protein isolate: 79; Egg white, dried: 81.1; Spirulina alga, dried: 57.45 (more often quoted as 55 to 77) Baker's yeast: 38.33; Hemp husks 30
Included for each food is its weight in grams, its calories, and (also in grams,) the amount of protein, carbohydrates, dietary fiber, fat, and saturated fat. [1] As foods vary by brands and stores, the figures should only be considered estimates, with more exact figures often included on product labels.
Spirulina major is a species of cyanobacteria in the family Spirulinaceae. [2] [1] It's found primarily in the Gulf of Mexico and sparsely on the shores of South America, Africa, Europe, the Middle East, and India. [3]
The EAAs in plants vary greatly due to the vast variation in the plant world and, in general, plants have much lower content of proteins than animal food. [2] [3] Some plant-based foods contain few or no EAAs, e.g. some sprouts, mango, pineapple, lime and melon. On the other hand, nuts, seeds, beans and peas contain EAAs in significant quantity.
The common name, spirulina, refers to the dried biomass of Arthrospira platensis, [3] a type of Cyanobacteria, which are oxygenic photosynthetic bacteria.These photosynthetic organisms were first considered to be algae, a very large and diverse group of eukaryotic organisms, until 1962 when they were reclassified as prokaryotes and named Cyanobacteria. [4]
Protein quality is the digestibility and quantity of essential amino acids for providing the proteins in correct ratios for human consumption. There are various methods that rank the quality of different types of protein , some of which are outdated and no longer in use, or not considered as useful as they once were thought to be.
There are various present and past uses of A. platensis as food or food supplement, which is better known as 'Spirulina' in this context. Spirulina is sold as a health supplement in the form of powder or tablets due to its high levels of essential and unsaturated fatty acids, vitamins, dietary minerals, and antioxidants. [5]