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Warta IHP (Warta Industri Hasil Pertanian)

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Published by Politeknik AKA Bogor

ISSN : 02151243 EISSN : 26544075 DOI : -

Core Subject : Agriculture, Engineering,

Agriculture, Biological Sciences & Forestry Industrial & Manufacturing Engineering

Warta IHP (Industri Hasil Pertanian) is a Scientific Journal which is sourced from research papers, new theoretical/interpretive findings, and critical studies or reviews (by invitation) in the agro-based industry scope that cover any discipline such as: food science and technology, agricultural industry technology, chemistry and essential oils, agricultural products processing machinery, food microbiology, renewable energy, chemical analysis, and food engineering.

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Articles 804 Documents

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A study on The Low-Temperature Preservation of Paddy-straw Mushroom (Volvariella volvaceae) Dhiah Nuraini; Suhardi Hardjo
Warta Industri Hasil Pertanian Vol 3, No 01 (1986)
Publisher : Balai Besar Industri Agro

A study on the low-temperature preservation of paddy-straw mushroom (Volvariella volvaceace) has been carried out. Stages of treatments include trimming, washing, blanching (0, 2, 4 and 6 min), cooling (cool water spraying for 30 min), packaging (without packaging, packed in polyethylene and vacuum packed films), and storage at cool temperature. Observation were done on moisture content. PH, Total acid, suluble solid, activity of catalase and peroxidase, and organoleptic test. The Results showed that paddy-straw mushroom can be preserved for two weeks at 7 degree-9 degree celcius in vacuum packaging (4-6 min blanching).

(The Process of Pyrolization Bamboo Throuugh Direct Combustion by using Fire Brick Kiln) H.G Pohan; M Maman Rohaman
Warta Industri Hasil Pertanian Vol 25, No 02 (2008)
Publisher : Balai Besar Industri Agro

The study on effect of bamboo variety and pyrolization through direct combustion using a fire brick klin model wquiped with a condenser to produce charcoal and vinegar has been carried out. The observation was conducted on the time and temperature profile of pyrolization process, yield of charcoal and its collected vinegar. The resulted charcoal and its liquor were subjected to further analysis, i.e. ash content, volatile matter at 950'C, fixed carbon content, and calorific value for the charcoal and the pH, organic subtances profile for the liquor. The study revealed that the yield of charcoal was varied from the lowest 8. 07 % (wb) of Bamboo Petung and the highest of 20.81% (wb)i.e., of Bamboo Andong. The ash content of charcoal was varied from 5.01 to 6.8% (wb). The volatile matter at 950'C was varied from 17.47 to 33.96% (wb) whereas the fixed carbon content was ranged from 5237 to 6637 cal/g. The electrica! conductivity was ranged from 8 - >9 , degree of crystallite between 10,45 and 14,51 % and surface area was ranged from 41,9 to 118,5 cm/g. it is also revealed yhat the yield of the Bamboo vinegar was varied from 6,52 - 17,26 % (wb) with pH varied from 3.75 to 4.01. The content of organic compounds found in liquor was varied i.e,. 19 compounds found in the liquor of Bamboo Andong, with dominant compound of tricyclo(2.2.2.1.0(2,6)heptene, 1,7 -dimetyhl-7-(4-methyl-3-penthyl)-(CAS)Si which comprised to 29.69 %, 29 compounds in liquor of Bamboo Petung with dominant compound of Acetic acid (CAS) Ethylic acid which comprised to 40.66 %, 13 compounds in liquor of Bamboo Ampel with domonant compounds of 2,6,10,14,18,22-Tetracosahexaene, 2,6,10,15,19,23,-hexamethyl- (CAS) Squ which comprised to 73.38 %; 39 compounds in liquor of bamboo Tali with dominant compound of cyclohexanon, 2-Isobutyl which comprised to 18.64% and 64 compounds was detected in liqour of bamboo Hitam domonant compounds of 2,3-dihydro-Ben zofuran which comprised to 11.53 %

Effect of Distillation on the Yield and Physico-chemical Properties of Young Nutmeg (Myristica Fragrance HOUTT.) Essential Oil Endah Djubaedah; Endang Suriadi; A. Moestofa; A. Basrah Enie
Warta Industri Hasil Pertanian Vol 3, No 02 (1986)
Publisher : Balai Besar Industri Agro

A research on the effects of distillation to the yields and physico-chemical properties of young nutmeg essential oil has been conducted. Fresh and dried nutmeg were distilled by cohobation method for 2, 5, 8, 11, and 14 hrs. The optimum yield of fresh and dried nutmeg essential oil were 15.8% (14 hrs.distillation) and 14.6% (11 hrs.distillation), respectively. The evaporation residues of both oils were increased from ca. 0.25% (2 hrs. distillation)to ca. 0.54% (14 hrs.distillation). Fresh nutmeg essential oil has a highest ester value (6.73 mg/g) and myristic content (17.25%) after 8 hrs.distillation.

(The Role, Development and Regulation Of Functional Food) Dadang Supriatna
Warta Industri Hasil Pertanian Vol 23, No 01 (2006)
Publisher : Balai Besar Industri Agro

Recentlly human daily diet tends to chamges not only to consume the nutrious food product but also the nutrious,safety and healthy effect food.The wrong diet manner and wrong diet life style of someone will emerge the degenerative disease such as diabetes melitus,atherosclerosis,cancer,obesity,coronary heart diseases,osteoporosis etc.Functional foods which have the physiological effect on preventing of the diseases and main taing the health have a prospect to be developed.For protectintg the consumer in using or consuming the functional food,it should be made its regulation.

(The Effect of Alkalization and Roasting of Fermented and Unfermented Cacao bean on the Quality and its Flavour Agus Sudibyo; Tiurlan F. Hutajulu; Nirwana Aprianita
Warta Industri Hasil Pertanian Vol 15, No 1-2 (1998)
Publisher : Balai Besar Industri Agro

A study on the effect of alkalization and roasting of fermented and unfermented cacao bean (Theobroma cacao, L) on the quality and its flovor had been conducted. The fermented caco bean used was taken from the estate, while unfermented cacao bean was taken from the farmer. Alkalization was carried out by using sodium and potassium carbonate at 1% and 2% concentration respectively, whereas the roasting process was done at 140 derajat celcius for 30 minutes. The analysis done on the cacao bean included pH, moisture, fat, free fatty acid (FFA), acidity and lipids composition. The result showed that quality of fermented cacao bean from the estate and unfermented cacao bean from the farmer was significantely different. The alkalization and roasting process aould improve the quality of unfermented cacao bean, however, it has affected the lipid composition.

Pengaruh Fermentasi Bakteri Asam Laktat dan Siklus Pemanasan Bertekanan-Pendinginan Terhadap Kadar Pati Resisten Tepung Ubi Jalar Ungu (Ipomea Batatas Var Ayamurasaki) Termodifikasi Raden Haryo Bimo Setiarto; Nunuk Widhyastuti
Warta Industri Hasil Pertanian Vol 34, No 1 (2017)
Publisher : Balai Besar Industri Agro

Penelitian ini bertujuan menganalisis pengaruh fermentasi kultur campuran bakteri asam laktat dan siklus pemanasan bertekanan–pendinginan terhadap kadar pati resisten tepung ubi jalar ungu termodifikasi. Irisan ubi jalar ungu difermentasi dengan kultur campuran bakteri asam laktat (Lactobacillus plantarum B-307: Leuconostoc mesenteroides SU-LS 67) (1:1) (vol/vol) selama 24 jam pada suhu 370C. Irisan ubi jalar ungu fermentasi selanjutnya diautoklaf (1210C, 15 menit) dan didinginkan (40C, 24 jam), perlakuan dilakukan untuk satu, dua dan tiga siklus. Irisan ubi jalar ungu kemudian dikeringkan (800C, 18 jam), digiling dan diayak (80 mesh) untuk mendapatkan tepung ubi jalar ungu modifikasi. Kombinasi pemanasan bertekanan-pendinginan dengan fermentasi mampu meningkatkan kadar pati resisten pada tepung ubi jalar ungu modifikasi. Semakin banyak jumlah siklus pemanasan bertekanan-pendinginan yang diaplikasikan dapat meningkatkan kadar pati resisten secara signifikan. Perlakuan fermentasi dengan 1 siklus pemanasan bertekanan-pendinginan (FAC-1S) menghasilkan kadar pati resisten tertinggi (11,26%) dibanding perlakuan lainnya dan meningkatkan kadar pati resisten sebesar 5,34 kali lipat dibandingkan perlakuan kontrol (2,11%). Peningkatan kadar pati resisten menyebabkan terjadinya penurunan daya cerna pada tepung ubi jalar ungu modifikasi.

Pengaruh Suhu dan Lama Penyimpanan Terhadap Warna Jeruk Siam Pontianak Setelah Degreening Nuzlul Musdalifah; Yohanes Aris Purwanto; Roedhy Poerwanto
Warta Industri Hasil Pertanian Vol 33, No 01 (2016)
Publisher : Balai Besar Industri Agro

Warna kulit merupakan salah satu faktor pendukung utama yang secara komersial menentukan pilihan konsumen untuk membeli jeruk. Degreening merupakan proses perubahan kulit jeruk dari warna hijau menjadi warna kuning atau jingga tanpa mempengaruhi kualitas internal buah. Tujuan penelitian ini adalah untuk menentukan suhu dan lama penyimpanan yang optimum untuk buah jeruk Siam setelah proses degreening serta menganalisis perubahan fisiologi buah selama penyimpanan. Perlakuan cold dan non-cold storage merupakan perlakuan awal pascapanen sebelum proses degreening. Perlakuan degreening dilakukan dengan pemaparan gas etilen 200 ppm, suhu 20oC selama 48 jam. Selanjutnya, jeruk hasil degreening disimpan pada suhu 10, 15, 20, dan 27oC (suhu ruang). Analisis perubahan warna kulit jeruk dilakukan setiap tiga hari untuk semua kondisi penyimpanan. Hasil penelitian menunjukkan bahwa terjadi peningkatan indeks warna jeruk citrus color indeks (CCI) dari nilai 0.16 menjadi 10.14 pada suhu 10 oC dan menghasilkan warna jeruk dengan warna kulit optimum jingga cerah.

("Pressure Drops" dan Kecepatan Minimum "Spouting" dalam Alat Pengering "Spouted Bed") Rizal Alamsyah
Warta Industri Hasil Pertanian Vol 8, No 01 (1991)
Publisher : Balai Besar Industri Agro

Studi ini dirancang untuk membuat suatu hubungan antara "Pressure drop" dan kecepatan aliran udara dalam suatu proses pengeringan dengan menggunakan spouted bed dryer. Percobaan dilakukan dengan mengggunakan "Coloumn" penuh berdiameter 0,27 m dan menggunakan bahan jagung pipil dan "celcon". Percobaan dilakukan dengan berbagai ketinggian tumpukan yaitu 35 cm, 40 cm, 43 cm, dan 57 cm dan suhu udara 24 derajat celcius, 35 derajat celcius, dan 40 derajat celcius. Hasil Percobaan disajikan dalam bentuk kurva hubungan antara pressure drop" (kpa)dan kecepatan aliran udara "superficial" (m/s). Secara umum kurva yang dihasilkan dalam percobaan dengan menggunakan "coloumn" penuh ternyata mempunyai pola yang serupa dengan kurva berdasarkan percobaan dengan menggunakan setengah "coloumn".

Perbaikan Teknologi Pengolahan Dodol Jambu Biji Skala IKM Nami Lestari; Mirna Isyanti; Sumadyo Rahardjo
Warta Industri Hasil Pertanian Vol 29, No 01 (2012)
Publisher : Balai Besar Industri Agro

Buah jambu biji (Psidium guajava L) adalah salah satu hasil hortikultura yang potensial untuk dikembangkan. Buah jambu biji segar mempunyai rasa dan aroma yang kuat, sehingga dapat diolah menjadi berbagai produk awetan, diantaranya adalah produk dodol. Produk dodol jambu biji sudah diproduksi di beberapa daerah, mulai dari skala Industri Rumah Tangga (IRT) sampai skala IKM. Masalah yang dihadapi pengrajin dodol adalah belum adanya formula yang tepat, penentuan kematangan dodol, waktu pemasakan yang terlalu lama serta daya awet dodol yang singkat, sehingga jangkauan pemasarannya tidak terlalu jauh. Tujuan penelitian yang dilakukan adalah meningkatkan mutu produk dodol jambu biji yang diproduksi pengrajin (skala IKM) dan mendapatkan Standar Operational Procedur (SOP) pengolahan dodol jambu yang tepat. Metode penelitian terdiri dari kinjungan studi dan identifikasi ke pengrajin dodol jambu biji, percobaan perbaikan proses pengolahan dodol jambu biji, analisis dan penyimpanan produk dodol jambu biji, serta evaluasi teknologi dan proses pembuatan dodol jambu biji. Dengan melakukan proses produksi dalam kondisi menerapkan GMP, menggunakan peralatan produksi terukur suhu dan lama pemanasannya, serta penggunaan santan kelapa yang tidak mudah terhidrolisa dibandingkan minyak goreng, proses pengolahan dodol jambu terbaik dalam proses C. Formulasi proses pengolahan C adalah santan kental (30%). SOP pengolahan dodol jambu biji meliputi proses sortasi, blanching, penghancuran, penyaringan, penimbangan bubur buah dan bahan penolong, pemasakan, kematangan produk ditandai adonan mudah dibalik, tidak lengket dan warna produk coklat, penyimpanan dalam suhu ruang selama 24 jam, pemotongan dan pembentukan, serta pengemasan. Hasil analisa mutu dodol jambu biji terpilih (prses C) adalah kadar air sebesar 12,0%, kadar abu 1,08%, serat kasar 2,01%, jumlah gula 53,7%, ALT 40 kloni/g, kapang dan khamir <10 koloni/g, dan E. Coli <3 APM/g.

(Research on the preparation of dried tropical fruit snack.i.effect of Sulpphite and Storage Periods on Quality of Fruit Leathers) A. Basrah Enie; Nami Lestari
Warta Industri Hasil Pertanian Vol 9, No 1-2 (1992)
Publisher : Balai Besar Industri Agro

Research on preparation of dried tropical fruit snacks,fruit leathers,has been conducted.there fruit snack formulations were developed i.e.(1)mixed fruit (banana,papaya,pineapple),(2)guava, and(3)mango.Product were treated with sodium meta bisulphite and strored for 0,1,2,and 3 months.Result show that the moisture content of product were descreased from 14.4%(0 mo)to 10.0%(3 mos),total sugar were descreased from 84.8%to 73.6%and total titratable acidity were relatively unchanged.Vitamin C content were descreased from 7.06(0 mo)to 6.08 mg/100gr (3 mos)for mixeed fruits,29.0 to 2.35 for guava and 5.13 to 4.11 for mango.Bacterial and mould content of samples were descreased during strorage.Microbial content of sulphite-treated samples were relatively lowered than untreated ones.Total bacteria were descreased from 200 CFU g-1 (0 mo) to CFU g-1 (3 mos),and the total mould were descreased from 350 CFU g-1 (o mo) to 5 CFU g-1 (3 mos. Organoleptic test showed that the taste,flavour, texture and colour of product were accepted by the panelists.Samples can be kept for three month without any significant changes.

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