Introduction to Jangheung Mushrooms
Jangheung log oak mushrooms, which grow on the sea breeze and morning fog of the River Tamjingang, are produced by using the traditional method of growing them on oak trees. We have obtained various eco-friendly certifications, including commendations from geographical indication organizations and international organic certification (USDA, EU, JAS).
Oak mushroom cultivation status
Category | 2020 | 2017 | Remarks | ||||||
---|---|---|---|---|---|---|---|---|---|
Subtotal | Wood | Sawdust | Side Job | Subtotal | Wood | Sawdust | Side Job | ||
Number of Farmers (Forest Households) |
409 | 380 | 23 | 6 | 492 | 442 | 38 | 12 | |
Cultivation area (ha) |
3,173 | 3,165 | 8 | 4,294 | 4,199 | 95 | |||
Cultivation amount (thousand rods, rods) |
7,179 | 5,369 | 1,810 | 8,448 | 7,027 | 1,421 | |||
Production (ton) |
321 | 272 | 49 | 376 | 376 | Dried oak mushroom |
|||
943 | 152 | 791 | 967 | 260 | 707 | Fresh oak mushroom |
|||
Sales (KRW million) |
13,704 | 8,110 | 5,597 | 17,081 | 11,798 | 5,283 |
Data source: Report on the survey of special products in Jangheung-gun in 2017 and 2020 (Jangheung County)
Eco-friendly Jangheung oak mushroom grown on oak logs
25% of national dried oak mushroom production
Log oak mushrooms are a representative specialty of Jangheung, and 250 tons of dried oak mushrooms are produced annually. Jangheung's log dried oak mushroom production accounts for 25% of the country's total, making Jangheung the leading producer of oak mushrooms in Korea.(Source: Survey on forest products producted in 2019, Korea Forest Service)
Baekhwago(White Oak Mushroom)
This is a oak mushroom with a cap barely open, the flesh is thick, and the cap is split like a turtle's back, with many white parts in between. It is rare because it can only be grown naturally in spring and fall throughout the year. It is known as the best oak mushroom and has excellent taste and aroma.
Heughwago(Black Oak Mushroom)
Its shape is similar to that of Baekhwago(White Oak Mushroom), but it has a dark brown color. In the natural cultivation process, those that grow with dew become Heughwago and those that do not become Baekhwago. This is a premium oak mushroom with excellent jucy taste and aroma.
Donggo(Golden Oak Mushroom)
The cap is spread less than 50%. It has a hemispherical shape, has thick flesh, and has some cracks on the cap surface. The taste is soft and has a subtle aroma. It is sold as fresh oak mushrooms in the market.
Jangheung Log Oak Mushroom Certification System
We have introduced and implemented a quality certification system to secure the trust of consumers and producers and to manage eco-friendly log oak mushrooms in Jangheung.
Procedure for Jangheung log oak mushroom certification
Submission
(Review)
- Information on Certification
- Application documents (OSP) provided
- Review of application documents (security) and notification of review schedule within 10 days
Review
(Documents)
- Document screening
- Notification of document review results and receipt of supplements
- Notification of on-site review schedule within 10 days of completion of document review
Screening
(On-Site)
- Confirmation of application documents and on-site consistency, etc.
- Inspection of sample collection
- Notification of deliberation results within 14 days: certification approval, certification rejection
Certificate Issuance
- Additional review or re-inspection
- Certification contract
- Certificate delivery
- Follow-up management (unannounced inspection during production process)
Comparison of contents between Jangheung log-based oak mushrooms and media-based oak mushrooms
Solid content
Type(%) | Log-based oak mushrooms | Media-based oak mushrooms | Times |
---|---|---|---|
Solid content | 23.57 | 15.38 | 1.5times |
β-glucan content
Type(%) | Log-based oak mushrooms | Media-based oak mushrooms | Times | |
---|---|---|---|---|
β-glucan | Fresh samples | 6.8 | 3.75 | 1.8times |
Dried samples | 28.85 | 24.38 | 1.2times |
Ergosterol content
Type(%) | Log-based oak mushrooms | Media-based oak mushrooms | Times | |
---|---|---|---|---|
Ergosterol | Fresh samples | 48.99(0.05%) | 30.6(0.03%) | 1.6배 |
Dried samples | 207.86 | 198.94 | - |
Ergothioneine content
Type(%) | Log-based oak mushrooms | Media-based oak mushrooms | Times | |
---|---|---|---|---|
Ergothioneine | Fresh samples | 3.08 | 4.61 | - |
Dried samples | 13.07 | 30 | - |
Total free sugar content
Type(%) | Log-based oak mushrooms | Media-based oak mushrooms | Times | |
---|---|---|---|---|
Total free sugar content | Fresh samples | 1.68 | 1.16 | 1.4배 |
Dried samples | 7.14 | 7.57 | - |
Total amino acid content
Type(%) | Log-based oak mushrooms | Media-based oak mushrooms | Times | |
---|---|---|---|---|
Total amino acid content | Fresh samples | 2.82 | 1.65 | 1.7times |
Dried samples | 11.96 | 10.76 | 1.1times |
[Data source] [Data source] The Jangheung Research Institute of Mushroom Industry carried out a project to support quality certification and industrialization of Jangheung specialty products (2019-2020). The data given above is part of the research results derived from the project. Experiment results may differ slightly depending on the cultivation environment and collection range of oak mushrooms.
Jangheung Oak Mushroom MAP
Since the Joseon Dynasty, Jangheung has been well-known as a major production area for oak mushrooms, and Jangheung's oak mushrooms are considered the best specialty product in the country. The Jangheung Oak Mushroom Festival is a place where you can experience various oak mushroom foods and food products made with oak mushroom as the main ingredient at Jusan Complex, purchase organically-certified oak mushrooms directly at a low price, and learn at a glance how organic oak mushrooms are grown. Thus, it is a place for experience and education.
- Oak mushrooms in Jangheung were designated as a major oak mushroom production area by the Korea Forest Service in 1992 and registered as the No. 2 forest product under the Geographical Indication system in 2006.
- Ranked first in dried oak mushroom production in Korea (share: 70-80% in the province, around 30% nationwide) In addition, 3.46ha of oyster mushrooms, 1.18ha of king oyster mushrosms, 1ha of sanghwang mushrooms(Phellinus linteus), and 1.18ha of reishi mushrooms are being cultivated.
- Supplied to Cheong Wa Dae (Blue House) as the President’s holiday gifts (7 times), and exported dried oak mushrooms·processed products to Hong Kong, the United States, etc.