Biology:Kawachi Bankan

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Short description: Citrus fruit
Kawachi Bankan
Kawachi bankan 2 河内晩柑.jpg
Kawachi Bankan fruit on tree
GenusCitrus
SpeciesCitrus kawachiensis or Citrus maxima
CultivarKawachi Bankan
OriginKumamoto Prefecture, Japan
Slices of the Kawachi Bankan fruit

Kawachi Bankan (Citrus kawachiensis), also called Mishokan and Uwa Gold, is a Citrus hybrid cultivated for its edible fruit.[1]

Genetics

Two varieties of Kawachi Bankan have been identified: one, a hybrid between the ujukitsu (seed parent, Citrus ujukitsu) and an unidentified species (pollen parent), and the other, a hybrid between the yuge-hyoukan (seed parent, Citrus yuge-hyokan) and an unidentified species (pollen parent).[2]

Distribution

It originated and is grown in Japan and is also grown in the United States .[1]

Description

The Kawachi Bankan was first discovered in Kumamoto Prefecture in 1910. Since the 1980s, the acreage growing this fruit has been increasing. The fruits are large, normally weighing 0.6–1.1 pounds (270–500 grams) and are slightly conical in shape, with most having a nipple at the stem end. They contain few seeds. The rind is thick, somewhat pebbly, and yellow in color; the flesh is also yellow. The flavor is said to be sweet and slightly acidic, and the fruit is very juicy. The tree is densely branched and the leaves are elliptic in shape. The fruit matures late and is shipped at the end of May in Japan .[1]

Chemistry

The peel of the Kawachi Bankan fruit contains many biologically active substances including naringin, narirutin, auraptene, and 3,5,6,7,8,3',4'-heptamethoxyflavone. The dried powder of the peel exerts anti-inflammatory and neuroprotective effects against aging in the brain of mice and ameliorates microglial activation, tau hyperphosphorylation, and suppression of neurogenesis in the hippocampus of senescence-accelerated mice.[3] It also ameliorates DSS-induced body weight loss, colon shortening, increased expression of pro-inflammatory cytokines, and decreased expression of colonic tight junctions in colitic mice.[4]

Confectionery products

A limited-edition flavor of the Japanese candy Hi-Chew is based on the Kawachi Bankan fruit.[5]

See also

References

  1. 1.0 1.1 1.2 "kawachi_bankan". https://citrusvariety.ucr.edu/citrus/kawachi_bankan.html. 
  2. Shimizu, Tokurou; Kitajima, Akira; Nonaka, Keisuke; Yoshioka, Terutaka; Ohta, Satoshi; Goto, Shingo; Toyoda, Atsushi; Fujiyama, Asao et al. (30 November 2016). "Hybrid Origins of Citrus Varieties Inferred from DNA Marker Analysis of Nuclear and Organelle Genomes". PLOS ONE 11 (11): e0166969. doi:10.1371/journal.pone.0166969. ISSN 1932-6203. PMID 27902727. Bibcode2016PLoSO..1166969S. 
  3. Okuyama, Satoshi; Kotani, Yoshimi; Yamamoto, Kana; Sawamoto, Atsushi; Sugawara, Kuniaki; Sudo, Masahiko; Ohkubo, Yuu; Tamanaha, Arisa et al. (4 May 2018). "The peel of Citrus kawachiensis (kawachi bankan) ameliorates microglial activation, tau hyper-phosphorylation, and suppression of neurogenesis in the hippocampus of senescence-accelerated mice". Bioscience, Biotechnology, and Biochemistry 82 (5): 869–878. doi:10.1080/09168451.2018.1433993. ISSN 0916-8451. PMID 29424280. https://www.tandfonline.com/doi/full/10.1080/09168451.2018.1433993. Retrieved 7 February 2021. 
  4. Kawabata, Ayami; Van Hung, Tran; Nagata, Yoko; Fukuda, Naohiro; Suzuki, Takuya (24 October 2018). "Citrus kawachiensis Peel Powder Reduces Intestinal Barrier Defects and Inflammation in Colitic Mice". Journal of Agricultural and Food Chemistry 66 (42): 10991–10999. doi:10.1021/acs.jafc.8b03511. ISSN 1520-5118. PMID 30277770. https://pubmed.ncbi.nlm.nih.gov/30277770/. Retrieved 7 February 2021. 
  5. "Hi-Chew: Kawachi Bankan & Pink Grapefruit". https://sugoimart.com/products/hi-chew-kawachi-bankan-pink-grapefruit.