Lichenin

Lichenin
Names
Other names
Lichenan; Moss starch
Identifiers
ChEBI
ChemSpider
  • none
ECHA InfoCard 100.014.323 Edit this at Wikidata
UNII
Properties
(C6H10O5)x
Molar mass Variable
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
☒N verify (what is checkY☒N ?)

Lichenin, also known as lichenan or moss starch, is a complex glucan occurring in certain species of lichens. It can be extracted from Cetraria islandica (Iceland moss).[1] It has been studied since about 1957.[2]

Structure

Chemically, lichenin is a mixed-linkage glucan, consisting of repeating glucose units linked by β-1,3 and β-1,4 glycosidic bonds.[1]

Uses

It is an important carbohydrate for reindeers and northern flying squirrels, which eat the lichen Bryoria fremontii.

It can be extracted by digesting Iceland moss in a cold, weak solution of carbonate of soda for some time, and then boiling. By this process the lichenin is dissolved and on cooling separates as a colorless jelly. Iodine imparts no color to it.[3]

Other uses of the name

In his 1960 novel Trouble with Lichen, John Wyndham gives the name Lichenin to a biochemical extract of lichen used to extend life expectancy beyond 300 years.

References

  1. ^ a b Perlin, A. S.; Suzuki, S. (1962). "The Structure of Lichenin: Selective Enzymolysis Studies". Canadian Journal of Chemistry. 40 (1). Canada: National Research Council of Canada: 50–56. doi:10.1139/v62-009.
  2. ^ Cunningham, WL; Manners, DJ (March 1964). "Studies on carbohydrate-metabolizing enzymes. 11. The hydrolysis of lichenin by enzyme preparations from malted barley and Rhizopus arrhizus". The Biochemical Journal. 90 (3). England: Portland Press on behalf of the Biochemical Society: 596–602. doi:10.1042/bj0900596. ISSN 0264-6021. PMC 1202740. PMID 5833367.
  3. ^ One or more of the preceding sentences incorporates text from a publication now in the public domain: Gilman, D. C.; Peck, H. T.; Colby, F. M., eds. (1905). "Lichenin" . New International Encyclopedia (1st ed.). New York: Dodd, Mead.


Stub icon

This biochemistry article is a stub. You can help Wikipedia by expanding it.

Stub icon

This article about lichens or lichenology is a stub. You can help Wikipedia by expanding it.

Read other articles:

Elizabeth Bentley

Untuk penyair Inggris, lihat Elizabeth Bentley (penulis). Untuk other people, lihat Elizabeth Bentley (disambiguasi). Elizabeth BentleyElizabeth Bentley pada tahun 1948AliansiUni Soviet (membelot)Amerika SerikatPelayananPartai Komunis Amerika Serikat (membelot) FBINama kodeGregoryNama lahirElizabeth Terrill BentleyKelahiran(1908-01-01)1 Januari 1908New Milford, Connecticut, ASMeninggal3 Desember 1963(1963-12-03) (umur 55)Grace-New Haven Hospital, New Haven, Connecticut, ASKebangsaanAmeri...

 

Ab Urbe Condita Libri

Buku Sejarah Roma, terkadang disebut sebagai Ab Urbe Condita, adalah sebuah catatan sejarah Romawi kuno yang ditulis dalam bahasa Latin antara 27 dan 9 SM oleh sejarawan Titus Livius, atau Livy. Karya tersebut menyoroti periode dari legenda terkait kedatangan Aeneas dan para pengungsi dari kejatuhan Troya, sampai pendirian kota tersebut pada 753, pengusiran para Raja pada 509, dan kejatuhan pada masa Livy sendiri, pada masa pemeritnahan kaisar Augustus. Peristiwa terakhir yang disoroti oleh ...

 

1905

Disambiguazione – Se stai cercando altri significati, vedi 1905 (disambigua). XIX secolo · XX secolo · XXI secolo Anni 1880 · Anni 1890 · Anni 1900 · Anni 1910 · Anni 1920 1901 · 1902 · 1903 · 1904 · 1905 · 1906 · 1907 · 1908 · 1909 Il 1905 (MCMV in numeri romani) è un anno del XX secolo. 1905 negli altri calendari Calendario gregoriano 1905 Ab Urbe condita 2658 (MMDCLVIII) Calendario armeno 1...

Avenging Waters

1936 film This article needs additional citations for verification. Please help improve this article by adding citations to reliable sources. Unsourced material may be challenged and removed.Find sources: Avenging Waters – news · newspapers · books · scholar · JSTOR (May 2019) (Learn how and when to remove this template message) Avenging WatersTheatrical release posterDirected bySpencer Gordon BennetWritten byNate GatzertProduced byLarry DarmourStarrin...

 

MYBL2

Protein-coding gene in the species Homo sapiens MYBL2Available structuresPDBOrtholog search: PDBe RCSB List of PDB id codes2D9AIdentifiersAliasesMYBL2, B-MYB, BMYB, MYB proto-oncogene like 2External IDsOMIM: 601415 MGI: 101785 HomoloGene: 1847 GeneCards: MYBL2 Gene location (Human)Chr.Chromosome 20 (human)[1]Band20q13.12Start43,667,019 bp[1]End43,716,495 bp[1]Gene location (Mouse)Chr.Chromosome 2 (mouse)[2]Band2 H2|2 84.0 cMStart162,896,607 bp[2]En...

 

Panagiotis Danglis (chieftain)

Panagiotis Danglis was a leader of the Greek revolutionary army during the Greek War of Independence (1821-1830). He was born in Souli and was the son of Gogas Danglis. During the period of the Revolution, he was chieftain of Souli (1820–1822). He died in 1829 in Nafpaktos.[1] References ^ Δαγκλής, Γιώτης (Παναγιώτης) (Σούλι, 1787 - Ναύπακτος, 1829) - Εκδοτική Αθηνών Α.Ε. www.greekencyclopedia.com. Retrieved 20 December 2022. vte...

Radiation protection

Protection of man and environment against the harmful effects of ionizing and non-ionizing radiation This article has multiple issues. Please help improve it or discuss these issues on the talk page. (Learn how and when to remove these template messages) This article needs additional citations for verification. Please help improve this article by adding citations to reliable sources. Unsourced material may be challenged and removed.Find sources: Radiation protection – news...

 

Around the World with Three Dog Night

1973 live album by Three Dog NightAround the World with Three Dog NightLive album by Three Dog NightReleasedFebruary 13, 1973Studio Pye Mobile Recording Unit ABC, Los Angeles, California GenrePop rockLength67:50LabelDunhillProducerRichard PodolorThree Dog Night chronology Seven Separate Fools(1972) Around the World with Three Dog Night(1973) Cyan(1973) Professional ratingsReview scoresSourceRatingAllMusic[1] Around the World with Three Dog Night is a double live album by Ameri...

 

Raleigh IceCaps

Former professional minor league ice hockey team in Raleigh, North Carolina Raleigh IceCapsCityRaleigh, North CarolinaLeagueECHLFounded1991Operated1991–1998Home arenaDorton ArenaAffiliateNew Jersey Devils (NHL)Franchise history1991–1998Raleigh IceCaps1998–2008Augusta LynxChampionshipsRegular season titlesnoneDivision titlesnoneConference titlesnoneKelly Cupsnone The Raleigh IceCaps were a professional ice hockey team based in Raleigh, North Carolina. Founded in 1991 and playing at Dorto...

2016年美國總統選舉

2016年美國總統選舉 ← 2012 2016年11月8日 2020 → 538個選舉人團席位獲勝需270票民意調查投票率55.7%[1][2] ▲ 0.8 %   获提名人 唐納·川普 希拉莉·克林頓 政党 共和黨 民主党 家鄉州 紐約州 紐約州 竞选搭档 迈克·彭斯 蒂姆·凱恩 选举人票 304[3][4][註 1] 227[5] 胜出州/省 30 + 緬-2 20 + DC 民選得票 62,984,828[6] 65,853,514[6]...

 

Jangchung Arena

Sports arena in Seoul, South Korea Jangchung ArenaJangchung Arena in 2019Former namesJangchung Gymnasium (1963–2016)LocationJung-gu, Seoul, South KoreaCoordinates37°33′29″N 127°0′24″E / 37.55806°N 127.00667°E / 37.55806; 127.00667OperatorCity of Seoul (1963–2007) Dongwon Enterprise (2007–2015) Seoul Metropolitan Facilities Management Corporation (2015–present)Capacity4,507[2]Field size11,399 square metres (122,700 sq ft)[1]...

 

جلال الدين الرومي

المولى  جلال الدين الرومي (بالفارسية: جلال‌الدین مُحمَّد بلخی)‏  معلومات شخصية اسم الولادة محمد بن محمد بن حسين بهاء الدين البلخي البكري الميلاد 30 سبتمبر 1207 [1][2][3]  وخش[4][5]  الوفاة 17 ديسمبر 1273 (66 سنة) [6][1][2][3]  قونية[7]  ...

Fukushima Masanori

This article may require copy editing for grammar, style, cohesion, tone, or spelling. You can assist by editing it. (June 2024) (Learn how and when to remove this message) Japanese daimyo, 1561–1624 Fukushima Masanori福島 正則Fukushima MasanoriLord of HiroshimaIn office1600–1619Preceded byMōri TerumotoSucceeded byAsano Nagaakira Personal detailsBornIchimatsu1561Futatsudera, Kaitō, Owari ProvinceDiedAugust 26, 1624(1624-08-26) (aged 62–63)NationalityJapaneseSpouseOmasaParentF...

 

Freemium

Freemium[1][2] adalah sebuah model bisnis dengan penawaran layanan mendasar secara cuma-cuma tetapi mengenakan biaya untuk fitur khusus atau lanjutan yang disebut premium. Kata freemium merupakan lakuran yang dibuat dengan mengombinasikan dua aspek dari model bisnis ini, yaitu free dan premium. Model bisnis ini populer di kalangan perusahaan Web 2.0.[3] Asal-usul Model bisnis freemium telah digunakan oleh perusahaan perangkat lunak sejak 1980-an. Layanan sering kali di...

 

Chiesa di San Cristoforo (Cortona)

Chiesa di San CristoforoStato Italia RegioneToscana LocalitàCortona Coordinate43°16′34.96″N 11°59′22.82″E43°16′34.96″N, 11°59′22.82″E Religionecattolica TitolareCristoforo Diocesi Arezzo-Cortona-Sansepolcro Inizio costruzione1192 CompletamentoRistrutturata e modificata nel 1575 Modifica dati su Wikidata · Manuale La chiesa di San Cristoforo è un edificio sacro che si trova nella piazzetta omonima a Cortona, in provincia di Arezzo e diocesi di Arezzo-Cortona-Sa...

Segundo Protocolo Facultativo del Pacto Internacional de Derechos Civiles y Políticos

Segundo Protocolo Facultativo del Pacto Internacional de Derechos Civiles y Políticos Segundo Protocolo Facultativo del Pacto Internacional de Derechos Civiles y Políticos, destinado a la abolición de la pena de muerte Miembros en verde oscuro; signatarios en verde claro; y no miembros en plomo.Tipo de tratado ProtocoloFirmado 15 de diciembre de 1989Nueva YorkEn vigor 11 de julio de 1991Firmantes 38[1]​Partes 85[1]​Depositario Naciones UnidasIdiomas Árabe, chino, español, fra...

 

الدوري السعودي الممتاز 2003–04

يفتقر محتوى هذه المقالة إلى الاستشهاد بمصادر. فضلاً، ساهم في تطوير هذه المقالة من خلال إضافة مصادر موثوق بها. أي معلومات غير موثقة يمكن التشكيك بها وإزالتها. (ديسمبر 2018) الدوري السعودي الممتاز تفاصيل الموسم 2003–2004 النسخة 28  البلد السعودية  البطل الشباب (رابع لقب) الهابط...

 

Carmen Franco

María del Carmen Franco y PoloCarmen Franco y Polo, lors de son mariage (10 avril 1950).FonctionPrésidente d'honneur (d)Fondation nationale Francisco Franco1976-2017Juan Chicharro Ortega (d)Titre de noblesseDuc de Franco1975-2017BiographieNaissance 14 septembre 1926OviedoDécès 29 décembre 2017 (à 91 ans)Calle de los Hermanos Bécquer (d) (Madrid, Espagne)Sépulture Crypt of the Cathedral of Our Lady of La Almudena (d)Nom de naissance María del Carmen Ramona Felipa María de la Cru...

Abel Tasman

Abel Tasman Född1603[1]Lutjegast[2], NederländernaDöd10 oktober 1659[1][3][4]Jakarta[5], IndonesienMedborgare iRepubliken Förenade Nederländerna[6][7]SysselsättningUpptäcktsresande, sjöfarare[8]Makenågon personnågon personRedigera Wikidata Rutterna för Tasmans två upptäcktsresor i Oceanien. Abel Janszoon Tasman, född 1603 i Lutjegast utanför Grootegast i provinsen Groningen, Nederländerna, död 10 oktober 1659 i Batavia (nuvarande Jakarta på Java i Indonesien), var en ne...

 

Fighter-bomber

Aircraft tasked primarily with ground attack while retaining some air combat capability Fighter bomber redirects here. For the video game, see Fighter Bomber (video game). The Republic P-47D was armed with eight .50-caliber (12.7 mm) machine guns, and could carry a bomb load of 2,500 lb (1,100 kg). A fighter-bomber is a fighter aircraft that has been modified, or used primarily, as a light bomber or attack aircraft. It differs from bomber and attack aircraft primarily in its origins...