Szechuan pepper

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Szechuan pepper

Chinese medicine
A deciduous tree, the fruit of which is carminative, diuretic, stimulant and tonic; it is used for constipation, nocturnal emissions and urinary frequency.
References in periodicals archive ?
Food The local communities in the eastern region of Jirisan widely used the seed powder of Zanthoxylum piperitum (L.) DC.
(stem), Stephanandra incisa Zabel (stem), Eucommia ulmoides (leaf), Zanthoxylum piperitum (leaf, root, fructus and stem), Cudrania tricuspidata (leaf), Houttuynia cordata (aerial part), Angelica keiskei (aerial part), Cirsium japonicum var.
1987a, b; Park and Ok, 1993); 3,4-dihydroxybenzoic acid, hesperidin, quercetin, quercetin-3-O-[beta]-D-galactoside, quercetin-3-O-[alpha]-L-rhainnoside and kaempferol-3-O-[alpha]-L-rhamnoside from Zanthoxylum piperitum (Hur et al.
In addition, Nelumbo nucifera, Eucommia ulmoides and Zanthoxylum piperitum (leaf) were effective DPPH radical scavengers with I[C.sub.50] values of 3.36, 6.69 and 7.41 [micro]g/ml, respectively.
Quercetin, quercetin-3-O-[beta]-D-galactoside, quercetin-3-O-[beta]-D-glucoside and quercetin-3-O-rutinose were isolated from Zanthoxylum piperitum, Houttuynia cordata, Orostachys japonicus or Cedrela sinensis, and they exhibited high DPPH radical-scavenging activities with I[C.sub.50] values of 2.75, 2.50, 1.66 and 1.97 [micro]M, respectively.
Of these, Cedrela sinensis, Nelumbo nucifera, Eucommia ulmoides, Zanthoxylum piperitum, Cudrania tricuspidata and Houttuynia cordata showed strong DPPH radical-scavenging activities.
Zanthoxylum piperitum, Houttuynia cordata, Armoracia rusticana and Orostachys japonicus showed relatively low activity compared with Rosa rugosa.
Scientific name Used part I[C.sub.50] value ([micro]g/ml) Eucommia ulmoides leaf 6.69 Zanthoxylum piperitum leaf 7.41 Cudrania tricuspidata leaf 13.29 Zanthoxylum piperitum root 15.29 Zanthoxylum piperitum fructus 15.66 Zanthoxylum piperitum stem 22.04 Houttuynia cordata aerial part 22.74 Angelica keiskei aerial part 23.34 Cirsium japonicum var.
Epple G, Bryant BP, Mezine I, Lewis S (2001) Zanthoxylum piperitum, an asian spice, inhibits food intake in rats.
Hashimoto K, Satoh K, Kase Y, Ishige A, Kubo M, Sasaki H, Nishikawa S, Kurosawa S, Yakabi K, Nakamura T (2001) Modulatory effect of aliphatic acid amides from Zanthoxylum piperitum on isolated gastrointestinal tract.