EUROPEAN JOURNAL OF
PHARMACEUTICAL AND MEDICAL RESEARCH

( An ISO 9001:2015 Certified International Journal )

An International Peer Reviewed Journal for Pharmaceutical, Medical & Biological Sciences

An Official Publication of Society for Advance Healthcare Research (Reg. No. : 01/01/01/31674/16)

European Journal of Pharmaceutical and Medical Research (EJPMR) has indexed with various reputed international bodies like : Google Scholar , Indian Science Publications , InfoBase Index (In Process) , SOCOLAR, China , Research Bible, Fuchu, Tokyo. JAPAN , International Society for Research activity (ISRA) , Scientific Indexing Services (SIS) , Polish Scholarly Bibliography , Global Impact Factor (GIF) (Under Process) , Universal Impact Factor , International Scientific Indexing (ISI), UAE  , Index Copernicus , CAS (A Division of American Chemical Society) USA (Under Process) , Directory of Open Access Journal (DOAJ, Sweden, in process) , UDLedge Science Citation Index , CiteFactor , Directory Of Research Journal Indexing (DRJI) , Indian citation Index (ICI) , Journal Index (JI, Under Process) , Directory of abstract indexing for Journals (DAIJ) , Open Access Journals (Under Process) , Impact Factor Services For International Journals (IFSIJ) , Cosmos Impact Factor , Jour Informatics (Under Process) , Eurasian Scientific Journal Index (ESJI) , International Innovative Journal Impact Factor (IIJIF) , Science Library Index, Dubai, United Arab Emirates , Pubmed Database [NLM ID: 101669306] (Under Process) , IP Indexing (IP Value 2.40) , Web of Science Group (Under Process) , Directory of Research Journals Indexing , Scholar Article Journal Index (SAJI) , International Scientific Indexing ( ISI ) , Scope Database , 

 ISSN 2394-3211

Impact Factor: 6.222

 ICV - 79.57

Abstract

CHEMISTRY PLAYS NOSTALGIA BEHIND THE AROMA OF BOOKS

Prof. Dr. Dhrubo Jyoti Sen*

ABSTRACT

When you walk into a library or a book store, the odor that works its way to your nostrils is a rather distinct one: the smell of old and new books. In fact, that unique smell is so loved that many avid readers still prefer physical books over the convenience of their digital versions (e-books). Books are made up almost entirely of organic materials: paper, ink, glue, fibers etc. All these materials react to light, heat, moisture and even each other over the years and release a number of volatile organic compounds (VOCs). While the blend of compounds released by any one book is dependent on the exact things that went into making it, there’s only so much variation in materials. Although new books are, well, new, they still give off a distinct odor. If you hold a new book up to your nose, you'll get a whiff of paper, ink and the book binding's adhesive. However, different books smell differently, because in today's modern age, different books use different chemical processes, paper treatments and adhesives in their making. This makes it difficult to determine specific chemicals that contribute to that smell, but all new books have three things in common: paper, ink and adhesives for binding. The process of creating paper from wood pulp itself involves a variety of chemicals, many which give off volatile organic compounds (VOCs), which release into the air and create odors. Then there's ink and adhesives, which also give off smells associated with books. However, it's the chemical compositions of older books that are most interesting. Although some readers like new book smells, it is old book smells that many are the most fond of and that chemistry is easier explained because the breakdown of compounds in the paper itself causes the smell. Older books have paper that contains a lot more cellulose and lignin, which come from the paper's original source: trees. These chemicals degrade and release VOCs, releasing scents that remind us of almonds, vanilla and flowers. The researchers tested 72 books and found some 15 compounds that came up again and again. They were reliable markers for degradation. These include acetic acid, benzaldehyde, butanol, furfural, octanal, methoxyphenyloxime and other chemicals with funny-sounding names. A book’s smell is also influenced by its environment and materials it encounters over the course of its life (which is why some books have hints of cigarette smoke, others smell a little like coffee and still others, cat dander). You can’t judge books by their covers, but the researchers think you can learn a lot from their odor. They're developing a method for determining the condition and age of books and other paper documents by using special “sniffing” equipment to analyze the blend of VOCs. They hope that this study of "degradomics" can help libraries, museums and archives assess and monitor the health of their collections and store and care for them accordingly.

Keywords: VOC, Adhesive, Water repellant, Bleaching agent, Cellulose, Lignin.


[Full Text Article]

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  • EJPMR: JANUARY ISSUE PUBLISHED

    JANUARY issue has been successfully launched on 1 JANUARY 2023.

  • New Issue Published

    Its Our pleasure to inform you that, EJPMR 1 January 2023 Issue has been Published, Kindly check it on https://www.ejpmr.com/issue

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    Its our Pleasure to Inform you that EJPMR Impact Factor has been increased from  5.804 to 6.222, due to high quality Publication at International Level

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Google Scholar Indian Science Publications InfoBase Index (In Process) SOCOLAR, China Research Bible, Fuchu, Tokyo. JAPAN International Society for Research activity (ISRA) Scientific Indexing Services (SIS) Polish Scholarly Bibliography Global Impact Factor (GIF) (Under Process) Universal Impact Factor International Scientific Indexing (ISI), UAE Index Copernicus CAS (A Division of American Chemical Society) USA (Under Process) Directory of Open Access Journal (DOAJ, Sweden, in process) UDLedge Science Citation Index CiteFactor Directory Of Research Journal Indexing (DRJI) Indian citation Index (ICI) Journal Index (JI, Under Process) Directory of abstract indexing for Journals (DAIJ) Open Access Journals (Under Process) Impact Factor Services For International Journals (IFSIJ) Cosmos Impact Factor Jour Informatics (Under Process) Eurasian Scientific Journal Index (ESJI) International Innovative Journal Impact Factor (IIJIF) Science Library Index, Dubai, United Arab Emirates Pubmed Database [NLM ID: 101669306] (Under Process) IP Indexing (IP Value 2.40) Web of Science Group (Under Process) Directory of Research Journals Indexing Scholar Article Journal Index (SAJI) International Scientific Indexing ( ISI ) Scope Database