Primjena blisko-infracrvene spektroskopije u detekciji usitnjenosti ljekovitog bilja

undergraduate thesis

• Title (english): Application of near infrared spectroscopy for detection of grounded medicinal herbs
• Author: Antonela Režan
• Mentor: Davor Valinger (mentor)
• Granter: University of Zagreb; Faculty of Food Technology and Biotechnology; (Department of Process Engineering); (Laboratory for Measurement, Regulation and Automatisation); Zagreb
• Defense date and country: 2017-07-07, Croatia
• Scientific / art field, discipline and subdiscipline: BIOTECHNICAL SCIENCES; Nutrition

Abstract

Ljekovito bilje predstavlja bogat izvor biološki aktivnih spojeva koje mogu imati povoljan utjecaj na zdravlje, a na tržištu danas nalazimo širok spektar pripravaka ljekovitog bilja. Redovno ili linijsko mjerenje veličine čestica dijelova ljekovitog bilja može biti jedan od načina za kontrolu kvalitete određenih proizvoda u kojima se kao sirovina za njihovu proizvodnju koristi ljekovito bilje. Neinvanzivna spektroskopija u bliskom infracrvenom rasponu od 904 do 1699 nm (NIR) primjenjena je za snimanje uzoraka pet različitih biljaka (kadulja, lavanda, matičnjak, menta i majčina dušica) pri sedam različitih veličina čestica (<100 μm, 100 μm, 250 μm, 355 μm, 500 μm, 800 μm i 1000 μm). NIR spektri upotrebljeni su za analizu glavnih komponenata. Cilj ovog rada je bio ispitati mogućnost diferencijacije različite usitnjenosti istih biljaka te različite usitnjenosti različitih biljaka. Rezultati su pokazali da je NIR spektroskopija uspješna prilikom razlikovanja različite usitnjenosti različitih biljaka te njezinu vrlo visoku osjetljivost prilikom različite usitnjenosti istih biljaka.

Abstract (english)

Medicinal plants represent a rich source of biologically active compounds that could have a beneficial effect on health and a wide range of medicinal plants can be found on the market today. Regular or in-line particle size measurement can be one of the ways to control the quality of certain products where medicinal plants are used as raw materials for their production. The non-invasive spectroscopy in the near infrared range of 904 - 1699 nm (NIR) was used to record spectra of five different plants (sage, lavender, lemon balm, mint and thyme) for seven different particle sizes (<100 μm, 100 μm, 250 μm, 355 μm, 500 μm, 800 μm and 1000 μm). NIR spectra were used for principal component analysis. The aim of this study was to examine the possibility of differentiating the different particle size of the same plants and the different particle size of different plants. The results have shown that NIR spectroscopy is successful in differentiating the different particle sizes of different plants and its very high sensitivity to the different particle sizes of the same plants.

• Keywords: NIR; ljekovito bilje; analiza glavnih komponenata; usitnjenost
• Keywords (english): NIR; medicinal plants; principal component analysis; grounding
• Language: croatian
• URN:NBN: urn:nbn:hr:159:633934
• Study programme: Title: Nutrition; Study programme type: university; Study level: undergraduate; Academic / professional title: sveučilišni/a prvostupnik/prvostupnica (baccalaureus/baccalaurea) nutricionizma (sveučilišni/a prvostupnik/prvostupnica (baccalaureus/baccalaurea) nutricionizma)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Open access
• Created on: 2017-07-10 09:03:46