Food Science Commons^™

Potensi Pakan Serat Dan Daya Dukungnya Terhadap Populasi Ternak Ruminansia Di Wilayah Kabupaten Garut, U. Hidayat Tanuwiria, A. Yulianti, A. Mushawwir

Jurnal Ilmu Ternak Universitas Padjadjaran

Penelitian ini bertujuan untuk mempelajari potensi pakan asal limbah tanaman pangan dan daya dukungnya terhadap populasi ternak ruminansia di wilayah kabupaten Garut. Penelitian dilakukan dengan cara survey dan pengumpulan data sekunder.  Hasil penelitian menunjukkan bahwa Potensi pakan asal rumput alam dan jerami asal limbah tanaman pangan di seluruh wilayah kabupaten Garut adalah 414.211,1 ton bahan kering (BK) yang terdiri atas 151.395,6 ton BK asal rumput dan 262.815,5 ton BK asal limbah tanaman pangan. Daya dukung pakan terhadap populasi ternak adalah 124.706 satuan ternak (ST), yang terdiri atas 45.580,5 ST ternak ruminansia kecil dan 79.125,5 ST ternak ruminansia besar.

Kata Kunci …

Potensi Pakan Asal Limbah Tanaman Pangan Dan Daya Dukungnya Terhadap Populasi Ternak Ruminansia Di Wilayah Sumedang (Agriculture By Product As Potential Feed And Its Carrying Capacity In Sumedang), U. Hidayat Tanuwiria, N. Mayasari, A. Yulianti

Jurnal Ilmu Ternak Universitas Padjadjaran

Penelitian ini bertujuan untuk mempelajari potensi pakan asal limbah tanaman pangan dan daya dukungnya terhadap populasi ternak ruminansia di wilayah kabupaten Sumedang. Penelitian dilakukan dengan cara survey dan pengumpulan data sekunder.  Hasil penelitian menunjukkan bahwa Potensi pakan asal rumput alam dan jerami asal limbah tanaman pangan di seluruh wilayah kabupaten Sumedang adalah 284.784,72 ton bahan kering (BK) yang terdiri atas 86.937,65 ton BK asal rumput dan 197.847,07 ton BK asal limbah tanaman pangan. Daya dukung pakan terhadap populasi ternak adalah 85.739,79 satuan ternak (ST), yang terdiri atas 26.174,21 ST ternak ruminansia kecil dan 59.565,58 ST ternak ruminansia besar. Potensi protein …

Pemanfaatan Gelatin Tepung Sagu (Metroxylon Sago) Sebagai Bahan Pakan Ternak Ruminansia (Utilization Of Sago (Metroxylon Sago) Gelatin As Feed Ruminant), Harry Triely Uhi

Jurnal Ilmu Ternak Universitas Padjadjaran

Telah dilakukan penelitian pemanfaatan gelatin sagu sebagai bahan pakan ternak ruminansia. Tujuan penelitian untuk mengetahui suhu, waktu dan ratio volume air yang tepat selama pemanasan sampai terbentuknya gelatinisasi. Justifikasi terjadinya proses gelatinisasi didasarkan atas rusaknya bentuk granula yang dilihat dengan  mikroskop elektron dan mikroskop polarisasi. Perlakuan yang digunakan R1 (Tepung sagu 100 gram + suhu   80 ⁰C); R2 (Tepung sagu 100 gram + suhu   85 ⁰C); R3 (Tepung sagu 100 gram + suhu   90 ⁰C); R4 (Tepung sagu 100 gram + suhu   95 ⁰C); dan R5 (Tepung sagu 100 gram + suhu 100 ⁰C). Parameter …

Pengaruh Tepung Cangkang Rajungan (Portunus Pelagicus) Sebagai Sumber Kitin Dalam Ransum Terhadap Kandungan Lemak Feses Dan Efisiensi Pakan Tikus Putih (Rattus Norvegiccus) Strain Wistar (The Effect Of Crabs Shells (Portunus Pelagicus) As A Source Of Chi, Muhamad Fatah Wiyatna, Irba U. Warsono, Aminuddin Parakkasi

Jurnal Ilmu Ternak Universitas Padjadjaran

Cangkang rajungan mengandung kitin yang persentasenya paling besar berupa polisakarida. Kitin dan derivat-derivatnya telah banyak digunakan dalam berbagai keperluan terutama untuk kesehatan. Penelitian ini dilakukan dengan tujuan untuk mengetahui pengaruh pemberian tepung rajungan sebagai sumber kitin terhadap efisiensi pakan dan kandungan lemak feces tikus putih Rattus norvegicus) strain Wistar. Penelitian menggunakan rancangan acak lengkap pola faktorial 2x5 dengan tiga kali ulangan. Faktor pertama adalah jenis kelamin dan kedua level tepung rajungan yaitu 0%, 5%, 10%, 15%, and 20%. Hasilnya penelitian menunjukkan tidak ada interaksi antara jenis kelamin dengan kandungan teung rajungan dalam ransum. Kandungan lemak dalam feces tertinggi diperoleh …

Pengaruh Lama Penyimpanan Semen Cair Ayam Buras Pada Suhu 5 0c Terhadap Periode Fertil Dan Fertilitas Sperma (The Storage Time Effect Of The Local Chicken Chilled Semen At 5 0c On Fertility And Fertile Period Of Sperm), Nurcholidah Solihati, Ruhijat Idi, Rangga Setiawan, I.Y. Asmara

Jurnal Ilmu Ternak Universitas Padjadjaran

Tujuan penelitian ini untuk mengetahui sejauh mana pengaruh lama penyimpanan semen cair ayam buras pada suhu 5⁰C terhadap periode fertil dan fertilitas sperma.  Penelitian ini menggunakan Rancangan Acak Lengkap (RAL) dengan 3 perlakuan dan setiap perlakuan diulang 6 kali.  Lama penyimpanan yang digunakan dalam penelitian ini adalah penyimpanan 1 jam (0 hari), 24 jam (1 hari) dan 48 jam (2 hari).  Peubah yang diukur adalah periode fertil dan fertilitas sperma. Data yang diperoleh dianalisis dengan analisis sidik ragam, dan untuk mengetahui perbedaan antar perlakuan diuji dengan menggunakan uji jarak berganda Duncan. Hasil penelitian menunjukan bahwa lama penyimpanan semen …

Research Progress In Antagonistic Bacteria Against Staphylococcus Aureus, Caiqi Wang, Yuansong Ma, Xinrui Zhao, Pei Zhou, Sifan Lu, Yuxin Li, Yinbiao Xu

Journal of Food Science and Biotechnology

Staphylococcus aureus,a common Gram-positive foodborne pathogen,is ubiquitous in the human skin and respiratory tract.It can cause pneumonia,pleurisy,endocarditis,food poisoning,sepsis and other infectious diseases.The widespread and long-term use of antibiotics has aggravated the antibiotic resistance of Staphylococcus aureus.In particular,the emergence of multi-drug resistant strains has greatly reduced the therapeutic effect.Therefore,developing new antibacterial means to replace or assist existing antibiotics has become an urgent need.Microbial natural products are important resources for the development of new antibiotics,and antagonistic microorganisms play an important role.This paper reviewed the species of antagonistic bacteria against Staphylococcus aureus,the types of antibacterial active substances,and the commonly used screening methods of …

Probiotics Regulate Gut Microbiota And Immune Homeostasis To Prevent And Treat Food Allergy : A Review, Yao Chen, Zumeng Xia, Yijin Yang, Lianzhong Ai, Guangqiang Wang, Yan Zhang, Zhen Luo, Yong Zhou, Yongjun Xia

Journal of Food Science and Biotechnology

Food allergy (FA) is a common immunological disorder,and its pathogenesis is primarily associated with a complex regulatory process involving CD 4+ T cells in the immune system,such as the polarization of Th 2 cells and the imbalance between Treg/Th 17 cells.The balance of intestinal immune cells plays a critical role in the development of FA,while dysbiosis of the gut microbiota may disrupt this balance,thereby contributing to the onset of FA.Probiotic intervention targeting the gut microbiota can directly or indirectly influence the functions of immune cells to regulate immune responses,representing a promising approach for the prevention and treatment of FA.The authors …

Research Progress Of Gc-Ms-Based Metabolomics In Fermented Cereal Foods, Haichen Liu, Chang Liu, Hongyan Huo, Hui Xu, Shunxi Zhu, Lei Liu, Kui Zou

Journal of Food Science and Biotechnology

As an emerging discipline,metabolomics has gradually become the focus of food science research.Among numerous metabolomics analysis methods,gas chromatography-mass spectrometry (GC-MS ) has attracted much attention for its wide application.Fermented cereal foods occupy an important position in global dietary culture and are an indispensable type of foods in peopl e’s daily lives.The author reviewed the application of GC-MS based metabolomics for the development of fermented cereal foods,covering sample preparation,metabolite extraction,data analysis,and practical application in fermented cereal foods.Moreover,this paper elaborated on the advantages and limitations of GC-MS-based metabolomics in fermentation,aiming to provide a reference for further exploring the principles of food fermentation …

Mechanism Of The Effect Of Microwave Heating On The Degradation Of Fructans In Steamed Cakes Prepared With Saccharomyces Cerevisiae, Xiaoyue Ying, Yuan Tao, Yuan Yuan, Ziting Li, Bowen Yan, Jianxin Zhao, Wei Chen, Daming Fan

Journal of Food Science and Biotechnology

[Objective ] This study aimed to investigate the effect of microwave heating on the fructan mass fraction in steamed cakes prepared with Saccharomyces cerevisiae and elucidate the molecular mechanism of the activation of invertase by microwave.[Method ] Steamed cakes were prepared under varying microwave power density (3.40~5.10 W/g ) and heating time (2~5 min ),and the fructan mass fraction was compared between steamed cakes prepared by microwave heating and conventional steaming.The activity of invertase from Saccharomyces cerevisiae was measured under microwave heating and water bath heating conditions.Molecular dynamics simulations were performed to explore the invertase-kestose interactions under microwave fields.[Result ] …

Differences In Important Chemical Components And Free Radical Scavenging Activities Of The Ginger Germplasm Resources From Fujian, Meichun Chen, Enquan Lin, Xuefang Zheng, Zuliang Li, Bo Liu, Jieping Wang

Journal of Food Science and Biotechnology

[Objective ] This study aims to analyze the important chemical components of different ginger germplasm resources from Fujian and evaluate their comprehensive quality and free radical scavenging activities.[Method ] Gas chromatography-mass spectrometry (GC-MS ) and liquid chromatography-quadrupole-time of flight-mass spectrometry (LC-QTOF-MS ) were employed to determine the importance chemical components in 13 ginger germplasm resources.Differences in the chemical compounds were analyzed by the cluster analysis and principal component analysis (PCA ).The free radical scavenging activities of the ginger germplasm resources against ABTS+ were further evaluated.[Result ] A total of 65 chemical compounds were identified from the 13 ginger germplasm resources,including …

Cyanidin- 3-Glucoside Ameliorates Ocular Surface Dysfunction In Rats With Dry Eye Disease, Ke Zhang, Ziyu Liu, Zhangben Yao, Peng Zhang, Lei Tian, Ying Jie, Yong Wang

Journal of Food Science and Biotechnology

[Objective ] Studies have shown that cyanidin- 3-glucoside (C3G),the main component of black rice anthocyanins,exhibits protective effects on retina and retinal pigment epithelium (RPE ) cells.However,there is a lack of in vivo evidence regarding the efficacy of C 3G in alleviating dry eye disease (DED ),which limits its application in ocular surface disorders.This study aims to investigate the protective effects of C 3G on DED in rats.[Method ] 24 Wistar rats were randomly assigned into control,model,and C 3G groups.In model and C 3G groups,a DED model was established by subcutaneous injection of scopolamine hydrobromide (4 times daily for 28 d).The …

Analysis Of Polyphenol Composition And Antioxidant Activity Of Jujube Juice Fermented By Lactic Acid Bacteria By In Vitro Simulated Gastrointestinal Digestion, Jiangning Zhang, Zheng Ye, Jiaqi Shen

Journal of Food Science and Biotechnology

[Objective ] This study aims to investigate the variation rules of polyphenolic substances and antioxidant activity of jujube juice fermented by lactic acid bacteria after in vitro simulated gastrointestinal digestion.[Method ] The mass fractions of total phenols,free phenols,and bound phenols,as well as the composition of polyphenolic substances and antioxidant activity in the jujube juice fermented by lactic acid bacteria (original jujube juice ) at different fermentation stages and in vitro simulated gastrointestinal digestive fluids were determined and compared.[Result ] With prolonged fermentation time,the mass fractions of total phenolics in the original jujube juice and the gastric digestive fluid increased and …

Influences Of Different Withering Methods On The Quality Of Wuyi Rock Tea Produced From Rain-Soaked Leaves, Chengjiang Wei, Weijiang Sun, Zhechen Han, Peng Zhang, Weiwei Wu, Tao Wang, Qinglan Chen, Qi Lin, Jie Xu, Fuming Lin

Journal of Food Science and Biotechnology

[Objective ] This study aims to investigate the effects of different withering methods on the quality of Wuyi rock tea produced from rain-soaked leaves.[Method ] The rain-soaked leaves of Wuyi Shuixian (Camellia sinensis ) were treated with three withering methods:comprehensive withering in a fermentation machine,natural withering,and withering in an automated withering equipment.Sensory evaluation,biochemical component detection,and headspace solid-phase microextraction coupled with gas chromatography-mass spectrometry were employed to comparatively analyze the flavor compounds.[Result ] The tea samples processed by the automated withering equipment (PW) exhibited the highest overall quality,characterized by a rich floral and fruity aroma,as well as a mellow,brisk,and refreshing taste.Cluster …

Ultrasound-Assisted Enzymatic Transformation And Immune Efficacy Of Black Ginseng Saponins, Kuo Wang, Bao Zhong, Mingran Luan, Fenglin Li, Zhongkui Lu, Guanran Wang, Kun Yao

Journal of Food Science and Biotechnology

[Objective ] This study aims to elucidate the transformation process of black ginseng saponins and their immunomodulatory mechanisms.[Method ] An ultrasound-assisted enzymatic method was employed for the transformation of black ginseng saponins,and the mass concentration of black ginseng saponins was determined.Furthermore,the immunomodulatory effects of black ginseng saponins were investigated through animal experiments.[Result ] Under the conditions of an enzymatic hydrolysis temperature of 40 ℃,an enzyme mass fraction of 8%,enzymatic hydrolysis time of 60 min,and ultrasonic treatment time of 25 min,the mass concentration of black ginseng saponins increased from 1 615.40 μg/mL to 3 351.38 μg/mL,which represented an increase of 107.47%.The …

Degradation Of Nutrients In Corn Steep Liquor By Aspergillus Oryzae And Absorption Characteristics Of The Product, Xiaojie Wang, Chunrong Xia, Xiaolan Liu

Journal of Food Science and Biotechnology

[Objective ] This study aims to explore the degradation patterns of nutrients in corn steep liquor by Aspergillus oryzae and the absorption characteristics of the product.[Method ] Aspergillus oryzae was used for the fermentation of corn steep liquor,and degradation patterns of nutrients were studied after fermentation for 1,3,5,7,9,and 11 d.Changes in amino acid mass fraction and peptide molecular mass distribution in corn steep liquor after fermentation for 7 d were measured.Furthermore,the resting cells of Auricularia heimuer mycelia were used to explore the absorption characteristics of the fermentation product of corn steep liquor.[Result ] As the fermentation time prolonged within 1~7 …

Screening And Identification Of Strains Of Lactic Acid Bacteria For Fermentation From Suancai In The Dai Ethnic Region Of Yunnan, Rui Wang, Jiawen Zhang, Lianqin Zhang, Xian Chen, Yan Chen, Cheng Zuo, Lixin Li, Yuhua Diao

Journal of Food Science and Biotechnology

[Objective ] This study aims to screen the strains of lactic acid bacteria (LAB ) suitable for Suancai fermentation.[Method ] Traditional fermented Suancai from the Dai ethnic region of Yunnan was used as the research samples for the isolation and purification of LAB.The purified isolates were evaluated for fermentation characteristics,including nitrite degradation,acid production,acid resistance,and salt tolerance.Additionally,the antimicrobial activity,antibiotic susceptibility,hemolytic activity,and amino acid decarboxylase activity were assessed to identify dominant strains.[Result ] A total of 208 LAB strains were isolated from 40 Suancai samples.Preliminary screening based on nitrite degradation identified 20 strains with high efficiency,and 16S rDNA sequencing identified 15 strains …

Antioxidant And Anti-Fatigue Properties Of Malus Spectabilis Fruit Polysaccharides In Mice, Zhilin Wen, Ming Li

Journal of Food Science and Biotechnology

[Objective ] This study aimed to explore the antioxidant and anti-fatigue properties of Malus spectabilis fruit polysaccharides (MPPs ) and analyze the structure-activity relationships.[Method ] Two types of MPPs were prepared via acidic (AC-MPC ) and alkaline (AL-MPC ) extraction methods.The polysaccharide composition was identified by high-performance anion-exchange chromatography (HPAEC ).The changes in mouse body mass,serum biochemical indicators,and exhaustive swimming time were measured to assess the in vivo antioxidant and anti-fatigue effects of MPPs.[Result ] Galacturonic acid was the main component in both types of MMPs,while AL-MPC had higher mass fraction of total polysaccharides.The in vivo experiments demonstrated that both …

Ultrasound-Assisted Dual-Enzyme Extraction Condition Optimization And Antioxidant Activity Evaluation Of Anthocyanins From Perilla Leaves, Wenting Zhu, Shiyun Wang, Qiaolin Zhu, Qi Cao, Yixin Zhang, Tianran Hong

Journal of Food Science and Biotechnology

[Objective ] This study aims to comprehensively develop perilla and improve its utilization value.[Method ] Using perilla leaves as raw material,the effects of solid-liquid ratio,ethanol volume fraction,ultrasonic time,and enzymatic hydrolysis time on the mass fraction of anthocyanins in perilla leaves were studied.The ultrasound-assisted dual-enzyme extraction conditions for anthocyanins from perilla leaves were optimized by the response surface method.The antioxidant activity and phenol mass fraction of anthocyanins from perilla leaves were determined,and the main phenols were analyzed by chromatography.[Result ] The optimal extraction conditions of anthocyanins from perilla leaves were solid-liquid ratio of 1 g∶16 mL,ethanol volume fraction of 74%,ultrasonic time …

Immobilization Of Pseudomonas Fluorescens Lipase Onto Chitosan And Chitin-Based Carriers And Evaluation Of Its Hydrolytic Performance, Haoyu Zhong, Hongyu Qin, Jun Zhang, Kuntai Li, Qiuyu Xia, Shucheng Liu

Journal of Food Science and Biotechnology

[Objective ] This study aims to construct chitosan and chitin-based carriers with hierarchical porous lamellar structures,systematically evaluate the immobilization effects of these carriers for Pseudomonas fluorescens lipase (PFL) and the performance of the immobilized enzyme in catalyzing the hydrolysis of fish oil.[Method ] Chitin/chitosan were modified via the sol-gel method to prepare the carriers for the binding with free PFL.The enzymatic properties of the immobilized PFL were then evaluated,and then analysed the hydrolysate composition of anchovy oil catalyzed by the immobilized PFL.[Result ] The modified carriers exhibited lamellar structures with abundant free amino groups on the surface,which facilitated covalent immobilization …

Construction And Antibacterial Activity Evaluation Of A Lipopeptide Delivery System, Rong Chen, Mingye Guo, Ge Hou, Yan Chen

Journal of Food Science and Biotechnology

[Objective ] This study constructed a stable lipopeptide (LP) delivery system to improve the stability and dispersibility of LP,thereby enhancing their antibacterial efficacy.[Method ] LP particles were constructed with chitosan (CS) and sodium alginate (SA).Assembly property changes were evaluated by means of different construction and single factor experiments.Interactions among CS,LP,and SA were investigated by Fourier transform-infrared spectroscopy (FT-IR ),and the rheological properties of the system were examined by a rheometer.Antibacterial activity of LP particles was evaluated with Escherichia coli (E.coli) and Staphylococcus aureus (S.aureus ) as model microorganisms.[Result ] LP particles prepared by dripping CS with the relative molecular mass …