Tổng Quan
- Danh pháp khoa học
- Acorus calamus L. var. americanus
- Họ thực vật
- Acoraceae (per APG-IV 2016; B216 EXPLICIT lists Araceae — outdated pre-APG-IV nomenclature)
- Bộ phận dùng
- Rhizomes
- Phương pháp chiết xuất
- Steam distillation
- Màu sắc
- —
- Phân loại nốt hương
- Nốt Base
- Hương thơm
- —
- Chemotype / Cultivar
- —
Tình trạng tại Việt Nam
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earthy warm sweet spicy balsamic rhizome sesquiterpene-ketone-deep North-American-Native-traditional
đất, ấm, ngọt, cay, balsam, mùi rễ củ, hơi long não, nền sesquiterpene ketone sâu, ít dược tính hơn dạng tetraploid, hơi giống rễ gừng, hương cổ điển First-Nations Bắc Mỹ, sâu nghi lễ tâm linh
2–4 giờ
Tên gọi tại Việt Nam
Pha Chế & Hòa Hợp
Sesquiterpene constituents (acorenone, isocalamendiol) relax smooth muscle of the GI tract, easing digestive spasm, bloating, and flatulence — the principal traditional indication for sweet flag rhizome across Indigenous North American, Ayurvedic, and Western herbal traditions.
Ref: Tisserand & Young 2014, p. 490-491; traditional use
Oxygenated sesquiterpene constituents are thought to modulate CNS excitability via olfactory and dermal pathways, supporting the traditional use of var. americanus for calming nervous tension and promoting mental clarity at standard dilutions.
Ref: Tisserand & Young 2014, p. 490-491; traditional use
Sesquiterpene-class constituents (β-gurjunene, α-cadinol) from rhizome EOs have shown in-vitro inhibition of pro-inflammatory mediators; class-extrapolated from sesquiterpene-hydrocarbon-rich rhizome oils — no direct study on var. americanus EO cited in §13.
Ref: class-extrapolation from sesquiterpene-hydrocarbon-rich rhizome oils; Tisserand & Young 2014, p. 490-491
α-Cadinol demonstrates cytotoxicity against HT-29 colon cancer cells (He et al. 1997a); the β-asarone-free diploid profile removes carcinogen-class concern of tetraploid/triploid forms, leaving a residual sesquiterpene-alcohol anticarcinogenic research signal — NOT a therapeutic claim.
Ref: He et al. 1997a (Taiwania cryptomerioides source — constituent-class extrapolation); Bertea et al. 2005
Sesquiterpene and trace phenylpropanoid constituents of calamus rhizome extracts have shown broad-spectrum antimicrobial activity in vitro; activity of the EO is inferred via constituent-class extrapolation from related aromatic rhizome EOs.
Ref: class-extrapolation from aromatic rhizome EOs; Tisserand & Young 2014, p. 490-491
AI-summary
Traditional aromatherapy use; no RCT-grade clinical evidence located for this specific cytotype (var. americanus diploid EO) in aromatherapy applications. The key analytical contribution is Bertea et al. (2005), which established a PCR/EcoRI restriction-site DNA-sequencing protocol to definitively distinguish the β-asarone-free North American diploid from the carcinogenic tetraploid (Indian) and triploid (European) cytotypes — a chemotaxonomic authentication method rather than a clinical trial. Tisserand & Young (2014, p. 490-491) place the diploid at 5% max dermal, contingent on confirmed cytotype identity. All therapeutic ratings are based on traditional use and in-vitro constituent-class evidence, not controlled clinical outcomes.
NarrativeTâm trạng: Grounding, Calming
Chakra
root
Ngũ hành
tho
| Phương pháp | Liều lượng | Ghi chú |
|---|---|---|
| Diffusion | 3-5 drops in 100 ml water | Earthy, woody-spicy aroma; blend with frankincense or vetiver. 30-min max per session. Confirm diploid var. americanus via supplier GC-MS or Bertea 2005 DNA method before use. |
| Topical massage | 1-3% in carrier oil (max 5% adult per T&Y 2014) | Dilute in jojoba or sweet almond; apply to abdomen for digestive complaints, neck/shoulders for nervous tension. Avoid sensitive or damaged skin. Confirm diploid cytotype before use. |
| Inhalation (direct) | 1-2 drops on tissue or palm | 2-3 brief inhalations for acute calming or digestive discomfort. Not suitable for prolonged inhalation in enclosed spaces. |
| Bath blend | 4-6 drops in bath dispersant or full-fat milk before adding to water | Warm bath 37–38°C, 15-20 min for grounding effect. Never add undiluted EO directly to bathwater. Avoid if skin is broken or inflamed. |
Dầu nền phù hợp
Kết hợp tốt với
Blend kinh điển
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