PENGARUH UKURAN PARTIKEL TERHADAP KANDUNGAN SERAT PANGAN DAN AKTIVITAS ANTIOKSIDAN DARI KULIT SINGKONG (Manihot esculenta)

IF 1 4区化学 Q4 CHEMISTRY, MULTIDISCIPLINARY

化学进展 Pub Date : 2021-11-30 DOI:10.35799/cp.14.2.2021.38960

Evanda Sakalaty, E. Suryanto, Harry S. J. Koleangan

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引用次数: 1

Abstract

Tujuan penelitian ini adalah untuk mengevaluasi pengaruh ukuran partikel terhadap kandungan serat pangan dan aktivitas antioksidan dari tepung kulit singkong yang diekstraksi dengan pelarut etanol. Penelitian ini terdiri dari 3 tahap yaitu mikronisasi, ekstraksi dan karakterisasi. Parameter yang digunakan adalah komposisi proksimat, serat pangan, hemiselulosa, selulosa, lignin, karakteristik gugus fungsi, krisnilitas, aktivitas antioksidan dan kapasitas penghambat ion nitrit. Hasil karakterisasi dengan X-ray diffraction menunjukan bahwa derajat kristalinitas tepung kulit singkong yang berukuran 50 mesh (KS-5); 100 mesh (KS-10) dan 200 mesh (KS-20) berturut-turut adalah 57,41; 55,42 dan 56,26%. Spektra FT-IR sampel KS-20, KS-10 dan KS-5 menunjukkan adanya serapan yang kuat pada gugus OH (3402,43; 3433,29 and 3425,58 cm-1), sedangkan pada daerah serapan 3000-2840 cm-1 menunjukan vibrasi C-H dari selulosa yang mengidenikasikan kehadiran senyawa polisakarida. Ketiga sampel memiliki bilangan gelombang yang sama dan tidak terjadi perubahan yang signifikan selama proses mikronisasi. KS-5 menunjukkan kandungan hemiselulosa lebih tinggi daripada KS-10 dan KS-20, tetapi memiliki kandungan selulosa dan lignin lebih rendah daripada KS-10 dan KS-20. Kandungan SPTL dan SPL dalam serat meningkat 1,26-1,30 kali setelah pengurangan ukuran partikel dalam serat tepung kulit singkong. Hasil kandungan total fenolik menunjukkan bahwa ekstrak KS-20 memiliki senyawa fenolik tertinggi daripada ekstrak KS-10 dan KS-5. Hasil ini juga menunjukkan bahwa KS-20 memiliki aktivitas penangkal radikal bebas dan penghambatan ion nitrit dibandingkan dengan ekstraks KS-10 dan KS-5.ABSTRACT The objective of this study was to evaluate the effect of particle size on dietary fiber content and antioxidant activity of cassava peel flour extracted with ethanol solvent. This research consisted of 3 stages, namely micronization, extraction and characterization. The parameters used were proximate composition, dietary fiber, hemicellulose, cellulose, lignin, functional group characteristics, crisnility, antioxidant activity and nitrite ion inhibitory capacity. The results of the physical characterization with X-ray diffraction showed that the degree of crystallinity of cassava peel flour with a size of 50 mesh (KS-5); 100 mesh (KS-10) and 200 mesh (KS-20) were 57.41; 55.42 and 56.26%, respectively. FT-IR spectrum analysis of samples KS-20, KS-10 and KS-5 showed a strong absorption of the OH group (3402.43 cm-1; 3433.29 cm-1, 3425.58 cm-1), while in the absorption of 3000-2840 cm-1 showed CH vibrations of cellulose which indicated the presence of polysaccharide compounds. The three samples have same wave number and there is no significant change during the micronization process. The IDF and SDF contents in fiber sample increased of 1,26-1,30 fold after reduce particles size of cassava peel flour. The results of phenolics total content showed that the KS-20 extract has higher phenolic than KS-10 and KS-5 extracts. The results also showed that KS-20 has radical scavenging activity and nitrit ion inhibition which is comparable to that KS-1- and KS-5 extracts. The results obtained in the present study indicate that the dietary fiber of cassava peel flour are a potential source of natural antioxidant fiber.

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粒度对木薯皮(Manihot esculenta)的食物纤维含量和抗氧化活性的影响

本研究的目的是评估颗粒大小对食物纤维含量的影响，以及用乙醇溶剂从木薯皮中提取的抗氧化剂活性的影响。该研究包括微化、提取和分类的三个阶段。使用的参数包括正离子、食物纤维、造素、纤维素、纤维素、褐素、星系团特征、敏捷性、抗氧化剂活性和硝酸化抑制能力。用x光衍射进行的分析表明，木薯淀粉的结晶度为50粒(千五分之一);连续100 mesh (cs -10)和200 mesh (cs -20)是57.41;55.42和56.26%。光谱usb - ir样本ch -20, ts -10和k -5显示组OH有强大的吸收力(3402,43;3433.29和342558 cm-1)而在吸收区域，300 -2840厘米这三个样本都有相同的波数，微化过程中没有显著变化。cs -5显示失纤维素含量高于cs -10和cs -20，但纤维素和褐红含量比cs -10和cs -20低。木薯淀粉中颗粒减少后，纤维中的SPTL和SPL含量增加了1.26 - 1.30倍。表型总含量表明，cs -20提取物中含有的表型化合物比cs -10和cs -5提取物中最高。这一结果还表明，KS-20比KS-10和km -5更具有自由基抑制和硝酸盐抑制的活性。这次研究的目的是评估二甲色纤维化和抗氧化剂作用的二分法。这项研究考虑到三种不同的阶段，namely微扫描、提取和查理化。过去的代表是proximate compositte, dietary fiber, hemicelludness, celludfunsion，净资产，净资产，物理特征与x射线衍射的反射表明，cassava的晶体变化与50 mesh (cs -5)的体积相似;100 mesh (cs -10)和200 mesh (cs -20)是57.41;55.42和56.26%，尊重。FT-IR频谱分析的ts -20, gs -10和gs -5显示了OH集团强大的吸收能力(3402.43 cm1;3433.29 cm1, 3425.58三只样本有同一个浪潮和没有浓厚,是当家during The micronization改变的过程。以色列国防军和SDF地点在光纤样品increased》之后的1,26-1,30皱褶减少particles皮尔木薯面粉的大小。《KS-20 results of phenolics总计数百万用户那里那个extract有高酚比KS-10和KS-5摘录。The results也拿给那个KS-20有激进scavenging活动和硝酸盐离子抑制,这是comparable to that KS-1 - and KS-5摘录。《现在study indicate that The results获得《皮尔木薯面粉是a dietary光纤潜在的自然antioxidant光纤的源代码。

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来源期刊

化学进展化学-化学综合

CiteScore

2.10

自引率

15.40%

发文量

4325

审稿时长

2.5 months

期刊介绍： Progress in Chemistry is a peer-reviewed monthly journal. It is sponsored by the Chinese Academy of Sciences(CAS) and the National Natural Science Foundation of China(NSFC). It provides a forum to publish review papers of specialized topics covering the full spectrum of chemistry in Chinese or English, with emphasis on those topics of emerging research area. The reviews provide comprehensive information, including recent advances, development trends, as well as critical assessments about the subject. The readers interested are : researchers and students in chemistry and related areas, and policy decision-makers. Most members of the editorial board are famous scientists.