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  Star Matabis  ( Xanthosoma Batatas Biscuit  ) Grup 3 Reisse Indah S. 161710101018 Istriani 161710101039 Fuji kurniawati 161710101045 Dia Ayu Cahya P. 161710101089 A. Introduction Colocasia esculenta is the plants from spicies of tuber. Colacasia esculenta also knowed is Taro.Taro included in taro yarms (araceae). This plant has the characteristic height of 1 m or more. This plant comes from the southeast asia region. Taro can be found in Indonesia in almost all the islands and scattered from the shore to the mountains. Taro has several types: bogor taro, taro silk, taro shapes, glutinous taro. Bogor taro also called glutinous tale. The leaves are dark green and have a reddish leave shape like a heart. Taro silk has light green leaves and fluffy, like silk. taro bentul has a purple colour more than taro silk. bentul taro tuber sizes is larger and light colored yellowesh. Other types of taro that is not consumed is sente taro and bolang taro because it feels uncomfortable and itchy. Sente taro has a large trunk and broadleaf so wedely used for ornamental or decorative plant. While bolang taro have itching and mottlesd trunk spots. B. Content Colocasia esculenta is a crop that includes the type of bulb. These plants belonging to the family Araceae, classified as seed plants (spermatophyte), with a seed in the closed (angiosperms) and dashed one (Monocotyledonae). Colocasia esculenta better known as Taro (Koswara, 2013). Kingdom : Plantae Division : Spermatophyta  Subdivisi : Angiospermae Class : Monocotyledonae Ordo : Arales Family : Araceae Genus : Colocasia Species : Colocasia esculenta Taro comes from India and America, which later spread to China, Japan, Indonesia, and several islands in the Pacific Ocean. Good area for this crop is planted in an area that has an altitude of 0-2740 m above sea level, with a temperature of 21-270C, and high rainfall. A section which can be harvested taro is a tuber with harvesting age range from 6-8 months marked mongering and yellowing leaves. Taro generally thrives in tropical countries. Foodstuffs have contributed to food security in the country and also has potential as food for export to generate a profit. Taro can be presented in the form of fresh, can be done in the form of frozen tubers or bulbs cans, and can be processed into flour. In addition taro can also be used as drugs. Talas is a plant whose tuber contains a lot of water. These bulbs consist of tubers of primary and secondary tuber. The second thing that distinguishes these bulbs are the primary tuber is the parent bulb has a secondary form with a length of 30 cm and a diameter of 15 cm, while the secondary tuber is a tuber that grows around the primary tubers with a very small size. Talas has a variety of forms depending on the environment in which it grows and varieties, ranging from cone shape, rounded, elliptical, halter, elongated, flat, faced many, and bunches (chinelo, et all,2015). Generally a taro tuber shape commonly found in Indonesia is a conical shape, cylindrical, elliptical, to form a flat bulb and faced many are never found in Indonesia to date. Colocasia esculenta consists of 3 types. has a shape and size that is almost the same and the only colors that distinguish each but the type of plants belonging to the genus Xanthosoma which has a size larger plant and tubers smaller than the taro. Xanthosoma genus consists of Belitung purse and a black purse (Nurbaya,et  al.2013). Factors that affect many populations of each type because many farmers cultivate plants as byproducts that can add value to the economy. The many types of taro plants yarns in an area influenced by environmental factors (growing requirements) and the factor of human activity. The diversity in the genus Colocasia esculenta and Xanthosoma show that in leaf form, shape and color of the tuber flesh cormel have low diversity values or relative uniform. One type genus Xanthosoma sagitifolium namely black purse is a type of taro yarns are widely found in India. Xanthosoma sagitifollium known as tannia or new cocoyam. Attachment of the petiole is at the point of notch which divides the lamina into two lobes and is called hastate or sagittate leaf. Leaves are generally dark green with white fleshed edible cormels. The main corm is thick to globose and surrounded by 5-10 lateral cormels. It is cultivated pantropically for edible tubers and cormels and is considered as a complex polymorphic species. Two variants from different localities were collected under cocoyam type for study.  Assamese vernacular names are ‘dohi kochu and radha kochu.(Sulistyowati,et al. 2014) Taro contains a high carbohydrate, protein, various vitamins (vitamin A, vitamin C, vitamin B1, vitamin K, and vitamin E), minerals, and low in fat. The carbohydrate content on taro has a strategic role. Taro has a high economic value because most of the plant could be used for human consumption. Taro plant is producing carbohydrates potentially as a substitute for rice (Kafah,2013).  Additionally taro contains many chemical compounds that can be produced from the process of secondary metabolites such as alkaloids, glycosides, Magnesium, essential oils, resins, fats, crude fiber, phosphorus, calcium, iron, thiamine, riboflavin, niacin, and organic acids Consuming 104 grams of taro offers 0294 mg of Vitamin B6,protein content (1,68-4,98%), crude fiber (1,42-4,56%), 27,52 g of Carbohydrate (21,17%), 0179 mg of Copper, 0398 mg of Manganese, 2:48 mg of vitamin E and 615 mg of Potassium. Moreover, many of Amino acids Tryptophan 0.024 g, 0.072 g of Threonine, Isoleucine of 0.056 g, 0.115 g of Leucine and 0:07 g of Lysine are Also found in 104 grams of taro (Oluwaseun, et all,2015).The chemical composition varies depending on several factors, such as variety, age and level of maturity of the tubers.   Climate and soil fertility factors also contribute to the differences in the chemical composition of tubers of taro. Values over taro tubers is easy of starch to digest. This is caused by the size of the starch granules are quite small and the starch contains amylose in considerable amounts (20-25%). In addition, taro is also free of gluten, the processed food from diet taro can be used for individuals who have an allergy to gluten. Taro tubers contain starch that can be ingested as much as 18.2%, sucrose and reducing to 1.42%, and 23.7% carbohydrate. Prior to cultivate taro into the product, the first thing to note is the reduction of potassium oxalate in taro. Potassium oxalate can cause a sense of itchy and irritation of the skin. Taro has a lot of benefits in health and food sector. In the health sector taro can be utilized as a drug prevention of cancer, reduce symptoms of Rheumatoid  Arthritis, Blood pressure and heart health, immune system health, as a cure cramps, can facilitate digestion, boosts vision, help maintain dental health, can reduce diabetes, Prevent bone loss, and skin health. While in the field of food, taro can be utilized as a staple food, or instead of rice, a vegetable, and can be processed into flour. Xanthosoma sagitifolium (purse black) has the basic shape of leaves, sagitate, leaf surface prect-APEC down, the outline of the leaf wavy, color of the leaves dark green, the outline of violet leaves, the branching pattern of the leaf stalk small, color leaf veins of purple, the color of the petiole purple, violet leaf midrib reddish color, medium waxy layer of leaves and stalks branching color purple leaves. Xanthosoma has komus conical shape, rounded and flesh color komus halter with white and pink that produce primary products such kormel (Ratnawati, et al.2013) This purse has a relatively high nutrient content. Every 100 grams of tubers purse can produce 145 kcal of energy; 1.2 grams protein; 0.4 grams of fat; 34.2 grams carbohydrate; 26 milligrams of calcium; 54 grams of phosphorus; 1.4 milligrams of Fe; 0.1 milligrams of vitamin B1; 2 milligrams of vitamin C; 63.1 grams of water and 1 gram of ash. Besides these bulbs also contain bioactive compounds and phenols such as diosgenin which, when processed into flour content of
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