Lac insect Byproducts
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Lac is a natural resin secreted by lac insects for protection. It is biodegradable, non-toxic, and odorless. Lac insects suck the sap of trees and secrete lac resin to cover their bodies. There are different types of lac depending on when it is harvested from the lac-bearing twigs - ari lac is immature lac harvested before larval emergence while phunki lac is harvested after. Stick lac, seed lac, shellac, button lac, garnet lac, bleached lac, dewaxed lac, lac wax, and lac dye are various byproducts derived from lac through processing.
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The House of Representatives will not countenance the use of federal funds to indoctrinate students into hateful, antisemitic, anti-American supporters of terrorism. Investigations into campus antisemitism by the Committee on Education and the Workforce and the Committee on Ways and Means have been expanded into a Congress-wide probe across all relevant jurisdictions to address this national crisis. The undersigned Committees will conduct oversight into the use of federal funds at MIT and its learning environment under authorities granted to each Committee.
• The Committee on Education and the Workforce has been investigating your institution since December 7, 2023. The Committee has broad jurisdiction over postsecondary education, including its compliance with Title VI of the Civil Rights Act, campus safety concerns over disruptions to the learning environment, and the awarding of federal student aid under the Higher Education Act.
• The Committee on Oversight and Accountability is investigating the sources of funding and other support flowing to groups espousing pro-Hamas propaganda and engaged in antisemitic harassment and intimidation of students. The Committee on Oversight and Accountability is the principal oversight committee of the US House of Representatives and has broad authority to investigate “any matter” at “any time” under House Rule X.
• The Committee on Ways and Means has been investigating several universities since November 15, 2023, when the Committee held a hearing entitled From Ivory Towers to Dark Corners: Investigating the Nexus Between Antisemitism, Tax-Exempt Universities, and Terror Financing. The Committee followed the hearing with letters to those institutions on January 10, 202
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Lac insect Byproducts
- 2. Lac is a natural, biodegradable, non-toxic, odourless, tasteless, hard resin. Lac is the only resin from animal origin Lac is a resinous exudation from the body of female scale insect. Lac insect is a minute crawling scale insect that inserts its suctorial proboscis into plant tissue, sucks juices, grows and secretes resinous lac from the body. Its body ultimately gets covered with lac in the so-called ‘CELL’. Lac is secreted by insects for protection from predators. Mahabharata - Gauravas built – Lac house
- 4. o Shellac o Seed lac o Lac Dye o Lac Wax o Lac Resin o Lac Protein o Button lac
- 6. Different byproducts of LAC • Iflac cropsare harvested bycuttingdownthelac- bearing twigsalittle before thelarval emergence, that lac is known asari lac (immature lac). ARI LAC • Iflac cropsare harvested bycuttingdownthelac bearing twigsafter the larval emergence isover, thatiscalled phunki lac (emptylac). Phunki lac • The lac encrustations is separated byknife or broken off withfingerfrom thetwigofhostplants and isknown issticklac or crude lac orrawlac. Stick lac • The sticklac, aftergrinding andwashing iscalled seed lac or chowri. SeedLac
- 7. Shellac • Themanufactured productpreparedfrom sticklacafterwashing andmelting,whichtakes theformofyellow colouredflakes,iscalled shellac. • Itisnon-toxic,hard, amorphous,brittle and alsoedible Buttonlac • Aftermeltingprocess,lac isdroppedonazincsheet andallowedtospreadout intorounddiscsofabout 3”diameterand1/4” thicknessiscalledbutton lac. Garnetlac • Itisprepared from inferiorseedlacor kiriby thesolventextraction process. • Itisdark incolourand comparativelyfreefrom wax. Bleachedlac • Itisprepared by dissolvingshellacorseed lacinSodiumcarbonate solution,bleachingthe solutionwithsodium hypochloriteand precipitatingtheresin withsulphuricacid.
- 8. • Lacfromwhichwaxhas beenremovedisknownas dewaxedlac. • Itcansafelybeusedin cosmeticshairsprays, shampoo,perfumes, • lipsticks,nailpolish, eyeliners,etc. Dewaxed lac • Lacwaxisamixtureof higheralcohols,acidsand theiresters.Itcanbeused inpreparation ofpolishes tobeappliedonshoes, floor,automobiles,etc • Itcanbeusedin preparation ofpolishesto beappliedonshoes,floor, automobiles, etc Lac Wax Lacdyeistraditionallyused tocolourwool,silk,foodand beverages.Beingeco- friendlyinnature,itis nowadays usedasa colouringmaterial. Lac Dye • Itisanestercomplex oflongchainhydroxy fattyacidsand sesquiterpenicacid. Lac resin