Food ingredients

Japanese mountain pepper (Zanthoxylum piperitum) — a native Japanese spice with a distinctive aromatic, tingling citrus-woody profile used for over a millennium in Japanese cuisine. Wakayama's Arida-gun (Budō sanshō cultivar) is the premier production region. Essential culinary companion to unagi, shichimi togarashi blends, and specialty confectionery. Cosmetic extracts also used in warming / circulation-positioned formulations.

Authentic Japanese wasabi (Wasabia japonica) grown in pristine mountain-stream conditions — distinct from the horseradish-based pseudo-wasabi common internationally. Shizuoka (Utogi, Izu) and Nagano are primary production regions. The rhizome is stone-grated for sushi accompaniment; powder and stabilized paste formats serve food manufacturing applications.

Galactomyces ferment filtrate is the clear liquid obtained from the culture of Galactomyces yeast. Studied for skin-conditioning and moisturizing effects. Japanese manufacturers produce the ingredient under INCI-recognized generic names; this platform lists only generic producers, not proprietary brand preparations.

Matcha is stone-ground tea powder made from shade-grown tencha green tea leaves. Japan's traditional production centers are Uji (Kyoto), Nishio (Aichi), and Shizuoka. Uji matcha is a protected geographical indication (GI). Nishio no Matcha was previously a GI but its registration was withdrawn in February 2020 and it is now protected as a Regional Collective Trademark. Export demand has grown sharply since the 2010s.

Hatcho Miso is a mame miso (soybean-only miso, no rice or barley) fermented in large wooden barrels with river stones as weight, aged typically two years. Japan's GI system registered Hatcho Miso in 2024. Export applications include premium ramen, grilled meat glazes, and high-end Japanese restaurant supply chains.

Kioke-fermented soy sauce is brewed in traditional Japanese cedar barrels (kioke, 木桶), some of which are over 100 years old and carry resident microbial communities. Most modern commercial soy sauce uses stainless-steel tanks; kioke production has contracted to a small number of specialist breweries concentrated in Shōdoshima, Yuasa, and Chiba.

Katsuobushi is dried, smoked, and fermented skipjack tuna, one of the foundational ingredients of Japanese dashi stock. The extract form is a concentrated liquid or powder standardized for umami components (inosinate, histidine, amino acids). Export applications include ramen bases, stock concentrates, and umami seasoning bases.

Kudzu starch is extracted from the thick tuberous root of Pueraria montana. Traditional Japanese production (吉野晒し) involves repeated water-washing of crushed roots over several weeks. Yoshino (Nara) and Akizuki (Fukuoka) are historic production centers; pure Yoshino-kuzu is a premium category with centuries-long continuous production.

Kinako is roasted soybean flour, made by dry-roasting whole soybeans and milling to a fine powder. A staple of Japanese confectionery, commonly used to coat mochi, wagashi, and traditional New Year foods. Industrial applications include pastry topping, nutrition bar ingredients, and functional food applications.

Okinawa kokutō is traditional unrefined cane sugar produced by open-pan boiling of freshly pressed sugarcane juice, without centrifugation or refining. GI registration covers production on 8 specific islands. Each island produces a subtly distinct flavor profile attributed to cultivar, soil, and local production tradition.

Hojicha is a Japanese green tea that has been roasted at high temperature, producing a distinctive toasty, low-astringency, low-caffeine beverage. The powdered form is used in ice cream, baked goods, specialty lattes, and confectionery. Export demand has grown as a caffeine-lower alternative to matcha.

Amazake is a traditional Japanese sweet beverage made by fermenting rice with rice koji. Koji enzymes convert rice starch to glucose, producing a naturally sweet, non-alcoholic drink. A separate variant made from sake lees contains low alcohol. Hakkaisan Brewery's 'Kōji dake de tsukutta Amasake' (FFC notification I290) is Japan's first koji-based beverage with dual functional claims via A. oryzae HJ1 strain and koji-derived glucosylceramide. Modern positioning includes 'drinking IV drip' (nomu tenteki) health-food claims.

Shio koji is a traditional Japanese seasoning made from rice koji, salt, and water, aged for 1–2 weeks. Enzymes from the koji tenderize meats, develop umami, and accelerate marinade action. Commercial forms include liquid, paste, and powder. Cosmetic extracts derived from shio koji are used in moisturizing and brightening formulations.

Hon-mirin (true mirin) is a traditional Japanese fermented rice cooking wine containing approximately 13–14% alcohol by volume. Aichi (Mikawa) and Chiba (Nagareyama) are the major traditional production areas. Hon-mirin is distinct from 'mirin-style seasoning' (みりん風調味料) — a non-fermented sweetener.

GABA is a non-protein amino acid produced commercially in Japan by lactic-acid bacterial fermentation or chemical synthesis. Japan is a global leader in functional-food applications of GABA, with thousands of FFC notifications citing stress reduction, sleep quality, and blood-pressure support.

Fibrinolytic enzyme discovered in 1980 by Dr. Hiroyuki Sumi, derived from Bacillus subtilis natto fermentation of soybeans.

Three species of turmeric cultivated in Okinawa. Autumn turmeric is curcumin-rich, spring and purple varieties are essential oil-rich.

Small citrus native to Ryukyu Islands. Contains the highest nobiletin concentration among citrus fruits.

Tropical vine cultivated in Ryukyu Islands for over 500 years. Central ingredient of goya chanpuru.

Okinawan variety of purple sweet potato with intense anthocyanin pigmentation. Heat-stable natural colorant.

Japanese mugwort species, distinct from Korean Artemisia asiatica. Long-standing use in kampo and Okinawan cuisine (Fuchiba).

Soy isoflavones (aglycone and glycoside forms) and S-Equol produced by Lactococcus 20-92 fermentation. Otsuka Pharmaceutical's 'Equelle' (2014) was the world's first commercial fermented-soy Equol supplement. Only ~50% of Japanese (~30% of Western) women naturally produce Equol from dietary soy.

Unripe papaya harvested before ripening, rich in papain, chymopapain, and carpain enzymes. Japanese fermentation techniques enable safe supplement use (raw papain is pharmaceutical-designated).

Salt-pickled Oshima Cherry leaves — the iconic wrapping for sakura-mochi confection. Matsuzaki Town (Shizuoka) produces approximately 70% of Japan's salt-pickled cherry leaves. Selected as one of Japan's 100 Fragrant Landscapes (Ministry of Environment, 2001).

Hardy perennial herb (Apiaceae family) native to Yonaguni Island and other subtropical Ryukyu coastlines. A local Okinawan longevity herb with chlorogenic acid and rutin content comparable to or exceeding kale.

Premium domestic Japanese jujube, primarily cultivated in Fukui Prefecture's Natsume district. Kampo medicine grade Taisō (大棗) variety dominates, pesticide-free and traceable.

Activated charcoal produced by charring Moso Bamboo at 1,000°C in traditional earth kilns, pulverized to micron-scale particles. Classified in Japan as 'plant charcoal color' food additive (植物炭末色素).