Keragaman Struktur Butir Amilum, Kadar Tepung, dan Clustering Delapan Taksa Tanaman Berumbi di Desa Simo Kecamatan Kendal Kabupaten Ngawi

Dioscorea alata, (local name ‘uwi’), is one of the potential local food sources in Central Java, Indonesia. Tubers are still found in several locations in Central Java. This study aimed to characterize the morphology of D. alata, to analyze the antioxidants, starch, amylose, amylopectin, and its potential as a functional food source. The materials for this research were seven variants of D. alata collected from Boyolali, Semarang and Kudus, Central Java. Morphological characterization was approached base on the tuber characteristics. The antioxidant analysis was done by Diphenylpicrylhydrazyl (DPPH) method whereas amylum and amylose analysis were done by spectrophotometry method. There are variations of tuber characters, especially in its shape, exoderm character, flesh color, and texture. D. alata has high antioxidant activity. The comparison of amylose towards amylum is 7.541 – 26.735%, however, the comparison of amylopectin towards amylum is around 73.265 – 92.469%. Uwi ungu Kudus is the best Dioscorea alata variety for diabetics.

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Morphology, histochemical test, potential, and conservation effort of Alpinia warburgii K. Schum., a native species to Sulawesi

Trimanto

Hapsari

2021

IOP Conf. Ser.: Earth Environ. Sci.

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Alpinia warburgii is a species of the Zingiberaceae family native to Sulawesi. This study aims to characterize the plant morphology; analyze the anatomical structure, histochemical localization, and secretory cell structure of the rhizome; also discuss the potential and conservation effort of the species. Anatomical study and histochemical tests were observed microscopically using the fresh preparation method and wet mounted slide. Histochemical tests carried out include starch, protein, lipid, tannin, alkaloid, and flavonoid. This study is considered the first report of histochemical tests on A. warburgii. The main morphological characteristics of A. warburgii are perennial herbaceous; inflorescence terminal and raceme; flowers white, labellum obovate with red lines in the middle, and flanked by light green edges; fruit globose, green when young and yellow when ripe. The rhizome anatomical structure comprises the epidermis, endodermis, hypodermis, parenchyma, cortex, and vascular bundles, classified as closed collateral type. Histochemical tests showed positive localization for starch, protein, alkaloids, flavonoids, and tannins. The density of flavonoids secretory cells is higher than tannins and alkaloids, which indicates its potential as medicine to be associated with antioxidant, antimicrobial, antiinflammation, and anticancer. In addition to in-situ, ex-situ conservation effort through propagation is also important to maintain the species.

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Keragaman Struktur Butir Amilum, Kadar Tepung, dan Clustering Delapan Taksa Tanaman Berumbi di Desa Simo Kecamatan Kendal Kabupaten Ngawi

Cited by 3 publications

References 3 publications

Alpinia galanga (L.) willd: Plant morphological characteristic, histochemical analysis and review on pharmacological

Alpinia galanga (L.) willd: Plant morphological characteristic, histochemical analysis and review on pharmacological

Alternatif Main Food from Dioscorea alata: Its Potency from Central Java, Indonesia

Morphology, histochemical test, potential, and conservation effort of Alpinia warburgii K. Schum., a native species to Sulawesi

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