Extraction and Optimization of Natural Dye from Hambo Hambo<i> (Cassia singueana)</i> Plant Used for Coloration of Tanned Leather Materials

<div>Maximum <svg height="11.5564pt" id="M36" style="vertical-align:-2.26807pt" version="1.1" viewbox="-0.0498162 -9.28833 30.5163 11.5564" width="30.5163pt" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink"><g transform="matrix(.013,0,0,-0.013,0,0)"><path d="M300 -147C201 -63 143 98 143 270S200 602 300 686L282 710C136 610 70 450 70 271V270C70 89 136 -72 282 -170L300 -147Z" id="g113-41"></path><glyph.data ascent="3473" descent="-2876" horiz-adv-x="346" vert-adv-y="346" xpluscharwidth="4.498"></glyph.data></g><g transform="matrix(.013,0,0,-0.013,4.498,0)"><path d="M743 650H503L496 622L527 618C563 613 564 603 532 573C449 495 371 431 323 392C301 374 272 355 246 346L280 522C297 609 300 614 379 622L385 650H135L129 622C209 614 215 609 198 522L124 133C106 39 99 35 23 28L17 0H271L277 28C193 35 192 39 208 133L239 316C264 328 280 325 303 288C368 183 435 90 502 0H652L659 28C602 34 584 43 543 94C495 154 403 283 347 369L574 554C634 603 659 612 735 624L743 650Z" id="g113-76"></path><glyph.data ascent="3473" descent="-2876" horiz-adv-x="755" vert-adv-y="755" xpluscharwidth="14.312999999999999"></glyph.data></g><g transform="matrix(.013,0,0,-0.013,14.315,0)"><path d="M368 703H309L44 -163H104L368 703Z" id="g113-48"></path><glyph.data ascent="3473" descent="-2876" horiz-adv-x="412" vert-adv-y="412" xpluscharwidth="19.671"></glyph.data></g><g transform="matrix(.013,0,0,-0.013,19.676,0)"><path d="M449 634C442 637 425 643 405 650C376 660 341 666 307 666C181 666 98 590 98 485C98 400 170 343 215 310L246 288C307 243 343 204 343 147C343 67 291 18 219 18C104 18 61 124 51 202L23 199C28 124 27 71 27 47C47 22 122 -16 204 -16C324 -16 428 60 428 174C428 256 379 309 307 360L276 382C223 419 179 455 179 516C179 576 221 632 293 632C379 632 410 564 418 487L448 490C446 536 446 592 449 634Z" id="g113-84"></path><glyph.data ascent="3473" descent="-2876" horiz-adv-x="472" vert-adv-y="472" xpluscharwidth="25.811999999999998"></glyph.data></g><g transform="matrix(.013,0,0,-0.013,25.813,0)"><path d="M275 270C275 450 212 609 64 710L45 686C145 604 203 442 203 270S147 -63 45 -147L64 -170C213 -68 275 89 275 270Z" id="g113-42"></path><glyph.data ascent="3473" descent="-2876" horiz-adv-x="346" vert-adv-y="346" xpluscharwidth="30.311"></glyph.data></g></svg> value of selected dyed leather samples at wavelength of 400 nm.</div>

Advances in Materials Science and Engineering

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Figure 3

Figure 3: Extraction and Optimization of Natural Dye from Hambo Hambo<i> (Cassia singueana)</i> Plant Used for Coloration of Tanned Leather Materials 

Advances in Materials Science and Engineering

Extraction and Optimization of Natural Dye from Hambo Hambo (Cassia singueana) Plant Used for Coloration of Tanned Leather Materials

Figure 3