Turmeric (Curcuma longa L.) and Ginger (Zingiber officinale Rosc.) - World's Invaluable Medicinal Spices

First report of Rotylenchulus reniformis infecting turmeric in Vietnam and consequent damage

“…(yellowing leaves and dry rot rhizomes) was found (R S = 0.64, Spearman correlation test, significance level = 0.046 and R = 0.781, Pearson correlation test, significance level = 0.008, respectively) ( Table 1). Nair (2019) reported that plant-parasitic nematodes such as M. incognita, Pratylenchus coffeae, and Radopholus similis can cause stunting, discolouration, and rotting of mature rhizomes in turmeric − symptoms that are indeed similar to those recorded in this study (Figure 2). It is well known that R. reniformis is one of the most devastating plantparasitic nematodes in the world (Robinson et al, 1997;Jones et al, 2013), even at densities between 0.1 to 5 nematodes/1 cm 3 of soil (Gaur and Perry, 1991).…”

“…Studies on the nutritional value of turmeric have shown the presence of many useful compounds with numerous useful medicinal properties including anti-inflammatory, antidiabetic, hepatoprotective, neuroprotective, chemoprotective, anticancer, anti-allergic, and anti-dermatophytic effects (Salehi et al, 2019). In addition, many studies have reported the usefulness of turmeric in treating different ailments such as gastrointestinal diseases, biliary and hepatic disorders, diabetic wounds, rheumatism, inflammation, sinusitis, anorexia, coryza, and cough (Ammon et al, 1992;Nasri et al, 2014;Salehi et al, 2019). Thanks to these valuable properties, turmeric is widely cultivated in many regions in Vietnam, such as Lao Cai, Lang Son, Vinh Phuc, Hung Yen, Nghe An, and the Central Highlands, where it represents a crop of high economic significance to farmers.…”

Micropropagation of Ginger (Zingiber officinale Roscoe) ‘Bentong’ and Evaluation of Its Secondary Metabolites and Antioxidant Activities Compared with the Conventionally Propagated Plant

“…Ginger is an unfertile species that failed to set seed. Thus, it cannot be sexually propagated because its rhizomes are used for its vegetative propagation [10]. As rhizome is an economically exploited part of the plant, using a high proportion of ginger rhizomes as starting material for cultivating the plant in the next growing season negatively affects its supply in the market.…”

Kualitas Mikrobiologi dan Fisikokimia Dendeng Sapi yang Ditambahkan Simplisia Serbuk Jahe Merah

“…Hal tersebut sesuai dengan pernyataan dari (Rafi et al, 2013) bahwa ketiga varietas jahe (emprit, gajah, dan merah) menunjukkan tingkat rasa pedasnya yang berbeda karena jumlah keton fenol homolog yang berbeda, yaitu 6-, 8-, 10-gingerol tiap varietasnya, dan 6-shogaol yang telah diidentifikasi sebagai senyawa utama dalam jahe. Oleh karena sebab itulah nilai pH sampel pun mengalami peningkatan seiring dengan peningkatan pemberian simplisia serbuk jahe merahnya, hal ini sesuai dengan pendapat (Nair, 2019) bahwa kandungan simplisia serbuk jahe merah berkisar antara 5,5 -6,5, dan juga pendapat dari (Lentera, 2002) pH jahe merah berkisar sekitar 4,3 -7,4 dengan pH optimum 6. Sedangkan pendapat dari (Shirshir et al, 2012) bahwa komposisi pH dari bubuk jahe sebesar 5.…”

“…antioksidan, seperti kandungan shoagol yang ada pada jahe. Shogaol telah terbukti menjadi senyawa dengan aktivitas antioksidan tinggi (Nair, 2019). Selain gingerol dan shogaol, jahe merah sarat dengan anthocyanin dan tannin (Wen-Guang et al, 2001).…”